diff --git a/.checkpatch.conf b/.checkpatch.conf
index bde90e0f..985b611b 100644
--- a/.checkpatch.conf
+++ b/.checkpatch.conf
@@ -11,3 +11,4 @@
 --ignore PREFER_DEFINED_ATTRIBUTE_MACRO
 --ignore COMPLEX_MACRO
 --ignore LONG_LINE_STRING
+--ignore EMBEDDED_FILENAME
diff --git a/tests/build_configure.sh b/.github/build_configure.sh
similarity index 100%
rename from tests/build_configure.sh
rename to .github/build_configure.sh
diff --git a/tests/install_ubuntu_packages.sh b/.github/configure_apt.sh
similarity index 56%
rename from tests/install_ubuntu_packages.sh
rename to .github/configure_apt.sh
index 12fa0a96..ece08b47 100755
--- a/tests/install_ubuntu_packages.sh
+++ b/.github/configure_apt.sh
@@ -6,8 +6,3 @@ echo "Detected VERSION_CODENAME: $VERSION_CODENAME"
 # Add ubuntu repository
 sudo add-apt-repository "deb [arch=amd64] http://archive.ubuntu.com/ubuntu $VERSION_CODENAME \
         main universe"
-# Install gcc
-sudo apt-get update && sudo apt-get install gcc-$1 g++-$1
-# Install dependencies
-sudo apt-get install pkg-config automake autoconf autoconf-archive make libsgutils2-dev \
-        libudev-dev libpci-dev check devscripts
diff --git a/.github/install_debs_compilation.sh b/.github/install_debs_compilation.sh
new file mode 100755
index 00000000..bdf9f67c
--- /dev/null
+++ b/.github/install_debs_compilation.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/bash
+
+# Install gcc
+if [ -z "$1" ]; then
+       sudo apt-get update && sudo apt-get install gcc-$1 g++-$1
+fi
+# Install dependencies
+sudo apt-get install pkg-config automake autoconf autoconf-archive make libsgutils2-dev \
+        libudev-dev libpci-dev check devscripts
diff --git a/.github/workflows/review.yml b/.github/workflows/review.yml
index 25ece102..05d670f8 100644
--- a/.github/workflows/review.yml
+++ b/.github/workflows/review.yml
@@ -1,11 +1,11 @@
 name: review
 on: [pull_request]
 env:
-    cflags: -Werror
+  cflags: -Werror
 permissions: read-all
 jobs:
-  checkpatch:
-    name: checkpatch review
+  commits_review:
+    name: Commits review
     runs-on: ubuntu-latest
     steps:
     - name: 'Calculate PR commits + 1'
@@ -16,78 +16,28 @@ jobs:
         fetch-depth: ${{ env.PR_FETCH_DEPTH }}
     - name: Run checkpatch review
       uses: webispy/checkpatch-action@v9
-  make:
-    name: Compilation test with gcc
-    strategy:
-      matrix:
-        gcc-version: [7, 8, 9, 10, 11, 12, 13]
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: 'Add ubuntu repository and install dependencies'
-        run: tests/install_ubuntu_packages.sh ${{ matrix.gcc-version }}
-      - name: 'Generate compiling configurations with library disabled'
-        run: . ./autogen.sh && ./configure CFLAGS=${{ env.cflags }}
-      - name: 'Make'
-        run: CC=gcc-${{ matrix.gcc-version }} CXX=g++-${{ matrix.gcc-version }} && V=1 make -j$(nproc)
-      - name: 'Hardening check: ledmon'
-        run: hardening-check src/ledmon/ledmon
-      - name: 'Hardening check: ledctl'
-        run: hardening-check src/ledctl/ledctl
-      - name: 'Check public symbol visibility'
-        run: tests/check_symbol_visibility.sh
-      - name: "Clean before retest with library enabled"
-        run: make clean
-      - name: 'Generate compiling configurations with library enabled'
-        run: . tests/build_configure.sh ${{ env.cflags }}
-      - name: 'Make'
-        run: CC=gcc-${{ matrix.gcc-version }} CXX=g++-${{ matrix.gcc-version }} && V=1 make -j$(nproc)
-      - name: 'Hardening check: ledmon'
-        run: hardening-check src/ledmon/ledmon
-      - name: 'Hardening check: ledctl'
-        run: hardening-check src/ledctl/ledctl
-      - name: 'Check public symbol visibility'
-        run: tests/check_symbol_visibility.sh
-  clangcompile:
-    name: Compilation test with clang
-    strategy:
-      matrix:
-        gcc-version: [12]
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - name: 'Add ubuntu repository and install dependencies'
-      run: tests/install_ubuntu_packages.sh ${{ matrix.gcc-version }}
-    - name: 'Install clang'
-      run: sudo apt-get install clang
-    - name: 'Generate compiling configurations'
-      run: . tests/build_configure.sh ${{ env.cflags }} clang
-    - name: 'Make'
-      run: V=1 make -j$(nproc)
-  tests:
-    name: Run tests
-    strategy:
-      matrix:
-        gcc-version: [12]
-        python-version: ["3.7"]
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: 'Add ubuntu repository and install dependencies'
-        run: tests/install_ubuntu_packages.sh ${{ matrix.gcc-version }}
-      - name: 'Generate compiling configurations'
-        run: . tests/build_configure.sh ${{ env.cflags }}
-      - name: 'Make'
-        run: CC=gcc-${{ matrix.gcc-version }} CXX=g++-${{ matrix.gcc-version }} && V=1 make -j$(nproc)
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Install python dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install pytest
-      - name: Run tests using pytest
-        run: |
-          # Run only non-hardware dependent tests
-          pytest --ledctl-binary=src/ledctl/ledctl
+    - name: Set up Python 3.11
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.11"
+    - name: Get modified files
+      id: changed-files
+      uses: tj-actions/changed-files@v44
+      with:
+        files_ignore: |
+          .checkpatch.conf
+          .github/**
+          LICENSES/**
+          .gitignore
+          *.md
+          autogen.sh
+          pytest.ini
+          *.yapf
+          COPYING*
+    - name: Run license review
+      env:
+        ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
+      run: |
+        for FILE in ${ALL_CHANGED_FILES}; do
+        python3.11 ./tests/licensing.py --file ${FILE} --log-level=INFO
+        done
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 00000000..de79ac57
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,84 @@
+name: test
+on: [pull_request]
+env:
+  cflags: -Werror
+permissions: read-all
+jobs:
+  make:
+    name: Compilation test with gcc
+    strategy:
+      matrix:
+        gcc-version: [7, 8, 9, 10, 11, 12, 13]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: 'Add ubuntu repositories'
+        run: .github/configure_apt.sh
+      - name: 'Install building dependencies'
+        run: .github/install_debs_compilation.sh ${{ matrix.gcc-version }}
+      - name: 'Generate compiling configurations with library disabled'
+        run: . ./autogen.sh && ./configure CFLAGS=${{ env.cflags }}
+      - name: 'Make'
+        run: CC=gcc-${{ matrix.gcc-version }} CXX=g++-${{ matrix.gcc-version }} && V=1 make -j$(nproc)
+      - name: 'Hardening check: ledmon'
+        run: hardening-check src/ledmon/ledmon
+      - name: 'Hardening check: ledctl'
+        run: hardening-check src/ledctl/ledctl
+      - name: 'Check public symbol visibility'
+        run: tests/check_symbol_visibility.sh
+      - name: "Clean before retest with library enabled"
+        run: make clean
+      - name: 'Generate compiling configurations with library enabled'
+        run: . .github/build_configure.sh ${{ env.cflags }}
+      - name: 'Make'
+        run: CC=gcc-${{ matrix.gcc-version }} CXX=g++-${{ matrix.gcc-version }} && V=1 make -j$(nproc)
+      - name: 'Hardening check: ledmon'
+        run: hardening-check src/ledmon/ledmon
+      - name: 'Hardening check: ledctl'
+        run: hardening-check src/ledctl/ledctl
+      - name: 'Check public symbol visibility'
+        run: tests/check_symbol_visibility.sh
+  clangcompile:
+    name: Compilation test with clang
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: 'Add ubuntu repositories'
+      run: .github/configure_apt.sh
+    - name: 'Install building dependencies'
+      run: .github/install_debs_compilation.sh
+    - name: 'Install clang'
+      run: sudo apt-get install clang
+    - name: 'Generate compiling configurations'
+      run: .github/build_configure.sh ${{ env.cflags }} clang
+    - name: 'Make'
+      run: V=1 make -j$(nproc)
+  tests:
+    name: Run tests
+    strategy:
+      matrix:
+        gcc-version: [12]
+        python-version: ["3.7"]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: 'Add ubuntu repositories'
+        run: .github/configure_apt.sh
+      - name: 'Install building dependencies'
+        run: .github/install_debs_compilation.sh ${{ matrix.gcc-version }}
+      - name: 'Generate compiling configurations'
+        run: .github/build_configure.sh ${{ env.cflags }}
+      - name: 'Make'
+        run: CC=gcc-${{ matrix.gcc-version }} CXX=g++-${{ matrix.gcc-version }} && V=1 make -j$(nproc)
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install python dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pytest
+      - name: Run tests using pytest
+        run: |
+          # Run only non-hardware dependent tests
+          pytest --ledctl-binary=src/ledctl/ledctl
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 00000000..039a1437
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,21 @@
+# Header and Copyrights
+
+Verification of License and Copyrights is automated on Github by
+[Licensing test](https://github.com/intel/ledmon/blob/main/tests/licensing.py).
+
+The rules for Licenses and Copyrights:
+- Preferred comment mark should be used for file type. Please prefer to test or other files for
+  examples. For `.c` and `.h` files, it is `//`.
+- [SPDX Licenses](https://spdx.org/licenses/) must be used:
+  - It must be on first  or in third line (only if interpreter is defined);
+  - Verification script contains set of allowed licenses for directories to avoid legal issues.
+    If you need to honour other license type, test must be extended.
+- Immediately after SPDX header Copyright lines may come. There are multiple Copyrights lines
+  allowed.
+- Only Intel copyright must follow strict style check.
+- The block must be ended by empty line.
+
+# Coding
+
+Commits must pass kernel [Checkpatch](https://docs.kernel.org/dev-tools/checkpatch.html). There are
+some excludes and it is automatically tested on Github.
diff --git a/LICENSES/LICENSE.GPL-2.0-only b/LICENSES/LICENSE.GPL-2.0-only
new file mode 100644
index 00000000..2ba72d57
--- /dev/null
+++ b/LICENSES/LICENSE.GPL-2.0-only
@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
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+code means all the source code for all modules it contains, plus any
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+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
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+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
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+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
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+
+It is not the purpose of this section to induce you to infringe any
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+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
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+to distribute software through any other system and a licensee cannot
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+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
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+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
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+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/LICENSES/LICENSE.GPL-3.0-or-later b/LICENSES/LICENSE.GPL-3.0-or-later
new file mode 100644
index 00000000..79cf4e4c
--- /dev/null
+++ b/LICENSES/LICENSE.GPL-3.0-or-later
@@ -0,0 +1,490 @@
+GNU GENERAL PUBLIC LICENSE
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license document, but changing
+it is not allowed.
+
+Preamble
+
+The GNU General Public License is a free, copyleft license for software and other kinds of works.
+
+The licenses for most software and other practical works are designed to take away your freedom
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+To protect your rights, we need to prevent others from denying you these rights or asking you to
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+the software, or if you modify it: responsibilities to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or for a fee, you must
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+Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on
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+The precise terms and conditions for copying, distribution and modification follow.
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+TERMS AND CONDITIONS
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+0. Definitions.
+"This License" refers to version 3 of the GNU General Public License.
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+"Copyright" also means copyright-like laws that apply to other kinds of works, such as semiconductor
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+item in the list meets this criterion.
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+1. Source Code.
+The "source code" for a work means the preferred form of the work for making modifications to it.
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+The Corresponding Source for a work in source code form is that same work.
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+All rights granted under this License are granted for the term of copyright on the Program,
+and are irrevocable provided the stated conditions are met. This License explicitly affirms your
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+You may convey verbatim copies of the Program's source code as you receive it, in any medium,
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+You may charge any price or no price for each copy that you convey, and you may offer support
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+5. Conveying Modified Source Versions.
+You may convey a work based on the Program, or the modifications to produce it from the Program,
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+conditions:
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+b) The work must carry prominent notices stating that it is released under this License
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+c) You must license the entire work, as a whole, under this License to anyone who comes into
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+You may convey a covered work in object code form under the terms of sections 4 and 5, provided that
+you also convey the machine-readable Corresponding Source under the terms of this License, in one of
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+a) Convey the object code in, or embodied in, a physical product (including a physical distribution
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+for software interchange.
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+A separable portion of the object code, whose source code is excluded from the Corresponding Source
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+
+A "User Product" is either (1) a "consumer product", which means any tangible personal property
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+
+If you convey an object code work under this section in, or with, or specifically for use in, a User
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+in source code form), and must require no special password or key for unpacking, reading or copying.
+
+7. Additional Terms.
+"Additional permissions" are terms that supplement the terms of this License by making exceptions
+from one or more of its conditions. Additional permissions that are applicable to the entire Program
+shall be treated as though they were included in this License, to the extent that they are valid
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+may be used separately under those permissions, but the entire Program remains governed by this
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+When you convey a copy of a covered work, you may at your option remove any additional permissions
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+
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+
+Nothing in this License shall be construed as excluding or limiting any implied license or other
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+If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict
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+13. Use with the GNU Affero General Public License.
+Notwithstanding any other provision of this License, you have permission to link or combine
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+
+If the Program specifies that a proxy can decide which future versions of the GNU General Public
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+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible use to the public,
+the best way to achieve this is to make it free software which everyone can redistribute and change
+under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach them to the start of
+each source file to most effectively state the exclusion of warranty; and each file should have at
+least the "copyright" line and a pointer to where the full notice is found.
+
+<one line to give the program's name and a brief idea of what it does.>
+Copyright (C) <year> <name of author>
+
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with this program.
+If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like this when it starts
+in an interactive mode:
+
+<program> Copyright (C) <year> <name of author>
+This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+This is free software, and you are welcome to redistribute it under certain conditions;
+type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate parts of the General
+Public License. Of course, your program's commands might be different; for a GUI interface, you
+would use an "about box".
+
+You should also get your employer (if you work as a programmer) or school, if any, to sign
+a "copyright disclaimer" for the program, if necessary. For more information on this, and how
+to apply and follow the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program into proprietary
+programs. If your program is a subroutine library, you may consider it more useful to permit
+linking proprietary applications with the library. If this is what you want to do, use the GNU
+Lesser General Public License instead of this License.
+But first, please read <https: //www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/LICENSES/LICENSE.LGPL-2.1-or-later b/LICENSES/LICENSE.LGPL-2.1-or-later
new file mode 100644
index 00000000..e69de29b
diff --git a/Makefile.am b/Makefile.am
index e94b0411..0da2dae0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,19 +1,5 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
 
 ACLOCAL_AMFLAGS = -I m4
 
diff --git a/config/config.h b/config/config.h
index 53f2f495..63ecf1bf 100644
--- a/config/config.h
+++ b/config/config.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2023 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _CONFIG_H_INCLUDED_
 #define _CONFIG_H_INCLUDED_
diff --git a/configure.ac b/configure.ac
index ba6872f8..63ccdafa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
 
 AC_PREREQ([2.69])
 
@@ -20,8 +21,7 @@ AM_PROG_AR
 LT_INIT
 
 # Checks for programs.
-
-AX_CHECK_PROG([gcc])
+AC_PROG_CC[gcc clang]
 AX_CHECK_PROG([make])
 
 
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 7a73d528..69b3f0f6 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -1,20 +1,7 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2023 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
+
+# Intel(R) Enclosure LED Utilities
 
 CLEANFILES = ledmon.conf.gz ledmon.gz ledctl.gz
 EXTRA_DIST = ledmon.conf.pod ledmon.pod ledctl.pod
diff --git a/doc/ledctl.pod b/doc/ledctl.pod
index 5b978962..73f34dd7 100644
--- a/doc/ledctl.pod
+++ b/doc/ledctl.pod
@@ -1,20 +1,8 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
+
+# Intel(R) Enclosure LED Utilities
+
 =head1 NAME
 
 ledctl - Intel(R) LED control application for a storage enclosures.
diff --git a/doc/ledmon.conf.pod b/doc/ledmon.conf.pod
index dc976861..e2290cca 100644
--- a/doc/ledmon.conf.pod
+++ b/doc/ledmon.conf.pod
@@ -1,20 +1,8 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
+
+# Intel(R) Enclosure LED Utilities
+
 =head1 NAME
 
 ledmon.conf - Configuration file for Intel(R) Enclosure LED Utilities.
diff --git a/doc/ledmon.pod b/doc/ledmon.pod
index 6a0d6856..df7bd0b0 100644
--- a/doc/ledmon.pod
+++ b/doc/ledmon.pod
@@ -1,20 +1,8 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
+
+# Intel(R) Enclosure LED Utilities
+
 =head1 NAME
 
 ledmon - Intel(R) LED monitor service for storage enclosures.
diff --git a/src/Makefile.am b/src/Makefile.am
index 2eb832a0..63c027d5 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,20 +1,4 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
-
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
 
 SUBDIRS=common lib ledctl ledmon
diff --git a/src/common/Makefile.am b/src/common/Makefile.am
index 09df842b..8d8b62fa 100644
--- a/src/common/Makefile.am
+++ b/src/common/Makefile.am
@@ -1,20 +1,5 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
 
 # Make a convenience library for this code
 noinst_LTLIBRARIES = libcommon.la
diff --git a/src/common/config_file.c b/src/common/config_file.c
index a4f449be..f6f2a97b 100644
--- a/src/common/config_file.c
+++ b/src/common/config_file.c
@@ -1,14 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2017 Intel Corporation.
+// Copyright (C) 2009 Karel Zak <kzak@redhat.com>
+
 /*
- * Intel(R) Enclosure LED Utilities
- *
- * Copyright (C) 2017-2024 Intel Corporation.
- * Copyright (C) 2009 Karel Zak <kzak@redhat.com>
- *
- * SPDX-License-Identifier: GPL-2.0
- *
  * Contains code from util-linux/libblkid/src/config.c
  * originally released under LGPL.
-*/
+ */
 
 #include <stdio.h>
 #include <string.h>
diff --git a/src/common/config_file.h b/src/common/config_file.h
index 49745cbe..55385868 100644
--- a/src/common/config_file.h
+++ b/src/common/config_file.h
@@ -1,14 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2017 Intel Corporation.
+// Copyright (C) 2009 Karel Zak <kzak@redhat.com>
+
 /*
- * Intel(R) Enclosure LED Utilities
- *
- * Copyright (C) 2017-2024 Intel Corporation.
- * Copyright (C) 2009 Karel Zak <kzak@redhat.com>
- *
- * SPDX-License-Identifier: GPL-2.0
- *
  * Contains code from util-linux/libblkid/src/config.c
  * originally released under LGPL.
-*/
+ */
+
 
 #ifndef SRC_CONFIG_FILE_H_
 #define SRC_CONFIG_FILE_H_
diff --git a/src/ledctl/Makefile.am b/src/ledctl/Makefile.am
index 16c03064..3576b160 100644
--- a/src/ledctl/Makefile.am
+++ b/src/ledctl/Makefile.am
@@ -1,20 +1,5 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
 
 sbin_PROGRAMS  = ledctl
 ledctl_SOURCES = ledctl.c help.c help.h
diff --git a/src/ledctl/help.c b/src/ledctl/help.c
index 28d7f995..71919341 100644
--- a/src/ledctl/help.c
+++ b/src/ledctl/help.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2024 Intel Corporation.
 
 #include <assert.h>
 #include <string.h>
diff --git a/src/ledctl/help.h b/src/ledctl/help.h
index 2dab97ba..8f7d9f20 100644
--- a/src/ledctl/help.h
+++ b/src/ledctl/help.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2024 Intel Corporation.
 
 #ifndef HELP_H_
 #define HELP_H_
diff --git a/src/ledctl/ledctl.c b/src/ledctl/ledctl.c
index 95db2d86..7646cc6f 100644
--- a/src/ledctl/ledctl.c
+++ b/src/ledctl/ledctl.c
@@ -1,21 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2009-2024 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2009 Intel Corporation.
 
 #include <config_ac.h>
 #include <ctype.h>
diff --git a/src/ledmon/Makefile.am b/src/ledmon/Makefile.am
index 67ca0f65..346fe7ee 100644
--- a/src/ledmon/Makefile.am
+++ b/src/ledmon/Makefile.am
@@ -1,20 +1,5 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
 
 sbin_PROGRAMS  = ledmon
 
diff --git a/src/ledmon/ledmon.c b/src/ledmon/ledmon.c
index 80e2a7c9..0999ac95 100644
--- a/src/ledmon/ledmon.c
+++ b/src/ledmon/ledmon.c
@@ -1,21 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2009-2024 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2009 Intel Corporation.
 
 #include <config_ac.h>
 #include <errno.h>
diff --git a/src/ledmon/pidfile.c b/src/ledmon/pidfile.c
index 90b71d23..aa0540fb 100644
--- a/src/ledmon/pidfile.c
+++ b/src/ledmon/pidfile.c
@@ -1,21 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2009-2024 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2009 Intel Corporation.
 
 #include <errno.h>
 #include <fcntl.h>
diff --git a/src/ledmon/pidfile.h b/src/ledmon/pidfile.h
index af745947..f8321051 100644
--- a/src/ledmon/pidfile.h
+++ b/src/ledmon/pidfile.h
@@ -1,21 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2009-2024 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2009 Intel Corporation.
 
 #ifndef _PIDFILE_H_INCLUDED_
 #define _PIDFILE_H_INCLUDED_
diff --git a/src/ledmon/udev.c b/src/ledmon/udev.c
index f91aee72..8119ce86 100644
--- a/src/ledmon/udev.c
+++ b/src/ledmon/udev.c
@@ -1,24 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
-
-/* Note: This file only used by ledmon */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <libudev.h>
 #include <limits.h>
diff --git a/src/ledmon/udev.h b/src/ledmon/udev.h
index 656ad0dd..98df0f4e 100644
--- a/src/ledmon/udev.h
+++ b/src/ledmon/udev.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _UDEV_H_INCLUDED_
 #define _UDEV_H_INCLUDED_
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
index 3820728a..96eee6aa 100644
--- a/src/lib/Makefile.am
+++ b/src/lib/Makefile.am
@@ -1,20 +1,7 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
+
+# Intel(R) Enclosure LED Utilities
 
 SUBDIRS = include
 
diff --git a/src/lib/ahci.c b/src/lib/ahci.c
index c0f05478..e0153631 100644
--- a/src/lib/ahci.c
+++ b/src/lib/ahci.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <errno.h>
 #include <limits.h>
diff --git a/src/lib/ahci.h b/src/lib/ahci.h
index 87f9c597..8aef0a77 100644
--- a/src/lib/ahci.h
+++ b/src/lib/ahci.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _AHCI_H_INCLUDED_
 #define _AHCI_H_INCLUDED_
diff --git a/src/lib/amd.c b/src/lib/amd.c
index b2f4d2e0..6a29f714 100644
--- a/src/lib/amd.c
+++ b/src/lib/amd.c
@@ -1,22 +1,7 @@
-/*
- * AMD LED control
- * Copyright (C) 2023, Advanced Micro Devices, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Advanced Micro Devices, Inc.
+
+/* AMD LED control */
 
 #include <errno.h>
 #include <fcntl.h>
diff --git a/src/lib/amd.h b/src/lib/amd.h
index ed3375e9..9901b530 100644
--- a/src/lib/amd.h
+++ b/src/lib/amd.h
@@ -1,22 +1,7 @@
-/*
- * AMD LED control
- * Copyright (C) 2023, Advanced Micro Devices, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Advanced Micro Devices, Inc.
+
+/* AMD LED control */
 
 #include "block.h"
 #include "sysfs.h"
diff --git a/src/lib/amd_ipmi.c b/src/lib/amd_ipmi.c
index e783cfe7..b5b22d3c 100644
--- a/src/lib/amd_ipmi.c
+++ b/src/lib/amd_ipmi.c
@@ -1,22 +1,7 @@
-/*
- * AMD IPMI LED control
- * Copyright (C) 2023, Advanced Micro Devices, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Advanced Micro Devices, Inc.
+
+/* AMD IPMI LED control */
 
 #include <errno.h>
 #include <fcntl.h>
diff --git a/src/lib/amd_ipmi.h b/src/lib/amd_ipmi.h
index 92b2b708..c07cad0d 100644
--- a/src/lib/amd_ipmi.h
+++ b/src/lib/amd_ipmi.h
@@ -1,22 +1,7 @@
-/*
- * AMD IPMI LED control
- * Copyright (C) 2023, Advanced Micro Devices, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Advanced Micro Devices, Inc.
+
+/* AMD IPMI LED control */
 
 #include "block.h"
 
diff --git a/src/lib/amd_sgpio.c b/src/lib/amd_sgpio.c
index 1e0d8a4f..e6804b6b 100644
--- a/src/lib/amd_sgpio.c
+++ b/src/lib/amd_sgpio.c
@@ -1,22 +1,7 @@
-/*
- * AMD SGPIO LED control
- * Copyright (C) 2023, Advanced Micro Devices, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Advanced Micro Devices, Inc.
+
+/* AMD SGPIO LED control */
 
 #include <errno.h>
 #include <fcntl.h>
diff --git a/src/lib/amd_sgpio.h b/src/lib/amd_sgpio.h
index f226b914..728735a0 100644
--- a/src/lib/amd_sgpio.h
+++ b/src/lib/amd_sgpio.h
@@ -1,22 +1,7 @@
-/*
- * AMD SGPIO LED control
- * Copyright (C) 2023, Advanced Micro Devices, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Advanced Micro Devices, Inc.
+
+/* AMD SGPIO LED control */
 
 #ifndef _AMD_SGPIO_INCLUDED_
 #define _AMD_SGPIO_INCLUDED_
diff --git a/src/lib/block.c b/src/lib/block.c
index 0f66d7b6..6fbacd6e 100644
--- a/src/lib/block.c
+++ b/src/lib/block.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <dirent.h>
 #include <fcntl.h>
diff --git a/src/lib/block.h b/src/lib/block.h
index dccb8ca6..4a4e8b94 100644
--- a/src/lib/block.h
+++ b/src/lib/block.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _BLOCK_H_INCLUDED_
 #define _BLOCK_H_INCLUDED_
diff --git a/src/lib/cntrl.c b/src/lib/cntrl.c
index 2038306e..48e40d8d 100644
--- a/src/lib/cntrl.c
+++ b/src/lib/cntrl.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <dirent.h>
 #include <limits.h>
diff --git a/src/lib/cntrl.h b/src/lib/cntrl.h
index bf38e3e6..bdf757d6 100644
--- a/src/lib/cntrl.h
+++ b/src/lib/cntrl.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _CNTRL_H_INCLUDED_
 #define _CNTRL_H_INCLUDED_
diff --git a/src/lib/dellssd.c b/src/lib/dellssd.c
index d72f663d..d45b1b40 100644
--- a/src/lib/dellssd.c
+++ b/src/lib/dellssd.c
@@ -1,22 +1,7 @@
-/*
- * Dell Backplane LED control
- * Copyright (C) 2023, Dell Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Dell Inc.
+
+/* Dell Backplane LED control */
 
 #include <errno.h>
 #include <fcntl.h>
diff --git a/src/lib/dellssd.h b/src/lib/dellssd.h
index 1ac80414..dd2949bd 100644
--- a/src/lib/dellssd.h
+++ b/src/lib/dellssd.h
@@ -1,22 +1,7 @@
-/*
- * Dell Backplane LED control
- * Copyright (C) 2023, Dell Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Dell Inc.
+
+/* Dell Backplane LED control */
 
 #include "block.h"
 #include "sysfs.h"
diff --git a/src/lib/enclosure.c b/src/lib/enclosure.c
index efadbbc7..5c3934d5 100644
--- a/src/lib/enclosure.c
+++ b/src/lib/enclosure.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <dirent.h>
 #include <fcntl.h>
diff --git a/src/lib/enclosure.h b/src/lib/enclosure.h
index d2d6e027..022b34fb 100644
--- a/src/lib/enclosure.h
+++ b/src/lib/enclosure.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _ENCLOSURE_H_INCLUDED_
 #define _ENCLOSURE_H_INCLUDED_
diff --git a/src/lib/include/Makefile.am b/src/lib/include/Makefile.am
index ce864ce8..d84e8efe 100644
--- a/src/lib/include/Makefile.am
+++ b/src/lib/include/Makefile.am
@@ -1 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2024 Intel Corporation.
+
 SUBDIRS =  led
diff --git a/src/lib/include/led/Makefile.am b/src/lib/include/led/Makefile.am
index b3b6b9ee..2fd339bc 100644
--- a/src/lib/include/led/Makefile.am
+++ b/src/lib/include/led/Makefile.am
@@ -1,20 +1,5 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2024 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
 
 if WITH_LIBRARY
 
diff --git a/src/lib/include/led/libled.h b/src/lib/include/led/libled.h
index cf6f81e6..89e7112c 100644
--- a/src/lib/include/led/libled.h
+++ b/src/lib/include/led/libled.h
@@ -1,23 +1,7 @@
-/*
- * LED library public interface
- *
- * Copyright (C) 2022-2023 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022-2023 Red Hat, Inc.
+
+/* LED library public interface */
 
 #ifndef _LIB_LED_INCLUDED_
 #define _LIB_LED_INCLUDED_
diff --git a/src/lib/ipmi.c b/src/lib/ipmi.c
index 204dda33..094e9773 100644
--- a/src/lib/ipmi.c
+++ b/src/lib/ipmi.c
@@ -1,22 +1,7 @@
-/*
- * Generic IPMI Interface
- * Copyright (C) 2023, Dell Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023, Dell Inc.
+
+/* Generic IPMI Interface */
 
 #include <errno.h>
 #include <fcntl.h>
diff --git a/src/lib/ipmi.h b/src/lib/ipmi.h
index 6e87a7d9..812e836b 100644
--- a/src/lib/ipmi.h
+++ b/src/lib/ipmi.h
@@ -1,21 +1,6 @@
-/*
- * Generic IPMI Interface
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+/* Generic IPMI Interface */
 
 #include "led/libled.h"
 
diff --git a/src/lib/libled.c b/src/lib/libled.c
index 05ffa101..1b66a90d 100644
--- a/src/lib/libled.c
+++ b/src/lib/libled.c
@@ -1,23 +1,7 @@
-/*
- * LED library
- *
- * Copyright (C) 2022-2023 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022-2023 Red Hat, Inc.
+
+/* LED library */
 
 #include "led/libled.h"
 
diff --git a/src/lib/libled_internal.c b/src/lib/libled_internal.c
index 8e29e6cd..9466cc37 100644
--- a/src/lib/libled_internal.c
+++ b/src/lib/libled_internal.c
@@ -1,23 +1,7 @@
-/*
- * LED library
- *
- * Copyright (C) 2022-2023 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022-2023 Red Hat, Inc.
+
+/* LED library internal */
 
 #include <string.h>
 #include <stdarg.h>
diff --git a/src/lib/libled_internal.h b/src/lib/libled_internal.h
index 19f475d9..2355d301 100644
--- a/src/lib/libled_internal.h
+++ b/src/lib/libled_internal.h
@@ -1,24 +1,7 @@
-/*
- * LED library internal
- *
- * Copyright (C) 2022-2023 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022-2023 Red Hat, Inc.
 
+/* LED library internal */
 
 /*
  * NOTE: This are functions that are used by ledctl and ledmon,
diff --git a/src/lib/libled_private.h b/src/lib/libled_private.h
index c692a034..5438d50a 100644
--- a/src/lib/libled_private.h
+++ b/src/lib/libled_private.h
@@ -1,23 +1,7 @@
-/*
- * LED library private
- *
- * Copyright (C) 2022-2023 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022-2023 Red Hat, Inc.
+
+/* LED library private */
 
 /* Note: This file "libled_private.h" should never be included in a header file! */
 
diff --git a/src/lib/list.c b/src/lib/list.c
index 78392601..2e1e215f 100644
--- a/src/lib/list.c
+++ b/src/lib/list.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <assert.h>
 #include <stdbool.h>
diff --git a/src/lib/list.h b/src/lib/list.h
index 9eb7bdec..579930f4 100644
--- a/src/lib/list.h
+++ b/src/lib/list.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _LIST_H_INCLUDED_
 #define _LIST_H_INCLUDED_
diff --git a/src/lib/npem.c b/src/lib/npem.c
index 5860e632..0f0a3169 100644
--- a/src/lib/npem.c
+++ b/src/lib/npem.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <errno.h>
 #include <stdio.h>
diff --git a/src/lib/npem.h b/src/lib/npem.h
index 710aa801..30bd7679 100644
--- a/src/lib/npem.h
+++ b/src/lib/npem.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef NPEM_H_INCLUDED_
 #define NPEM_H_INCLUDED_
diff --git a/src/lib/pci_slot.c b/src/lib/pci_slot.c
index 8b3b8571..fd62264b 100644
--- a/src/lib/pci_slot.c
+++ b/src/lib/pci_slot.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <limits.h>
 #include <stdint.h>
diff --git a/src/lib/pci_slot.h b/src/lib/pci_slot.h
index 4790b02e..2d4114b5 100644
--- a/src/lib/pci_slot.h
+++ b/src/lib/pci_slot.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef PCI_SLOT_H_INCLUDED_
 #define PCI_SLOT_H_INCLUDED_
diff --git a/src/lib/raid.c b/src/lib/raid.c
index bd68848a..29130ad6 100644
--- a/src/lib/raid.c
+++ b/src/lib/raid.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <limits.h>
 #include <stdint.h>
diff --git a/src/lib/raid.h b/src/lib/raid.h
index 7a6d461e..07720029 100644
--- a/src/lib/raid.h
+++ b/src/lib/raid.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _RAID_H_INCLUDED_
 #define _RAID_H_INCLUDED_
diff --git a/src/lib/scsi.c b/src/lib/scsi.c
index badd55a4..dd02f732 100644
--- a/src/lib/scsi.c
+++ b/src/lib/scsi.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <dirent.h>
 #include <errno.h>
diff --git a/src/lib/scsi.h b/src/lib/scsi.h
index 7945182b..18e12268 100644
--- a/src/lib/scsi.h
+++ b/src/lib/scsi.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _SCSI_H_INCLUDED
 #define _SCSI_H_INCLUDED
diff --git a/src/lib/ses.c b/src/lib/ses.c
index 7c210c54..07746c76 100644
--- a/src/lib/ses.c
+++ b/src/lib/ses.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <dirent.h>
 #include <inttypes.h>
diff --git a/src/lib/ses.h b/src/lib/ses.h
index 02011ead..bb06f1d7 100644
--- a/src/lib/ses.h
+++ b/src/lib/ses.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _SES_H_INCLUDED_
 #define _SES_H_INCLUDED_
diff --git a/src/lib/slot.c b/src/lib/slot.c
index 5cf7794c..1044ddf4 100644
--- a/src/lib/slot.c
+++ b/src/lib/slot.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2023-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023 Intel Corporation.
 
 #include <stdio.h>
 #include <string.h>
diff --git a/src/lib/slot.h b/src/lib/slot.h
index 3e0fb2ec..952c198b 100644
--- a/src/lib/slot.h
+++ b/src/lib/slot.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2023-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2023 Intel Corporation.
 
 #ifndef SLOT_H_
 #define SLOT_H_
diff --git a/src/lib/smp.c b/src/lib/smp.c
index 83cb207a..bf1467fb 100644
--- a/src/lib/smp.c
+++ b/src/lib/smp.c
@@ -1,23 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
-
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <dirent.h>
 #include <errno.h>
diff --git a/src/lib/smp.h b/src/lib/smp.h
index 3ac51962..63f34c37 100644
--- a/src/lib/smp.h
+++ b/src/lib/smp.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include "led/libled.h"
 #include "block.h"
diff --git a/src/lib/status.h b/src/lib/status.h
index 11eb49fa..f6e3896f 100644
--- a/src/lib/status.h
+++ b/src/lib/status.h
@@ -1,32 +1,11 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _STATUS_H_INCLUDED_
 #define _STATUS_H_INCLUDED_
 
-/**
- */
 typedef int status_t;
 
-/**
- */
 enum status_code {
 	STATUS_SUCCESS = 0,
 	STATUS_BUFFER_OVERFLOW,
diff --git a/src/lib/sysfs.c b/src/lib/sysfs.c
index cc794e9c..c87958b8 100644
--- a/src/lib/sysfs.c
+++ b/src/lib/sysfs.c
@@ -1,23 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
-
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <fcntl.h>
 #include <limits.h>
diff --git a/src/lib/sysfs.h b/src/lib/sysfs.h
index 1f6ede8d..668d7ecd 100644
--- a/src/lib/sysfs.h
+++ b/src/lib/sysfs.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _SYSFS_H_INCLUDED_
 #define _SYSFS_H_INCLUDED_
diff --git a/src/lib/tail.c b/src/lib/tail.c
index 93e6d23d..1147999d 100644
--- a/src/lib/tail.c
+++ b/src/lib/tail.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <limits.h>
 #include <stdint.h>
diff --git a/src/lib/tail.h b/src/lib/tail.h
index 2203629a..c3a0dfb3 100644
--- a/src/lib/tail.h
+++ b/src/lib/tail.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _TAIL_H_INCLUDED_
 #define _TAIL_H_INCLUDED_
diff --git a/src/lib/utils.c b/src/lib/utils.c
index 16e3751c..a7936c69 100644
--- a/src/lib/utils.c
+++ b/src/lib/utils.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <ctype.h>
 #include <dirent.h>
diff --git a/src/lib/utils.h b/src/lib/utils.h
index bcd576b1..cfecd688 100644
--- a/src/lib/utils.h
+++ b/src/lib/utils.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _UTILS_H_INCLUDED_
 #define _UTILS_H_INCLUDED_
diff --git a/src/lib/vmdssd.c b/src/lib/vmdssd.c
index ac635c4c..9d9fe40c 100644
--- a/src/lib/vmdssd.c
+++ b/src/lib/vmdssd.c
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #include <errno.h>
 #include <limits.h>
diff --git a/src/lib/vmdssd.h b/src/lib/vmdssd.h
index 3dd325fb..6a44a21f 100644
--- a/src/lib/vmdssd.h
+++ b/src/lib/vmdssd.h
@@ -1,22 +1,5 @@
-/*
- * Intel(R) Enclosure LED Utilities
- * Copyright (C) 2022-2024 Intel Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2022 Intel Corporation.
 
 #ifndef _VMDSSD_H
 #define _VMDSSD_H
diff --git a/systemd/Makefile.am b/systemd/Makefile.am
index fb7e0ec4..e6644861 100644
--- a/systemd/Makefile.am
+++ b/systemd/Makefile.am
@@ -1,20 +1,5 @@
-#
-#  Intel(R) Enclosure LED Utilities
-#  Copyright (C) 2009-2023 Intel Corporation.
-#
-#  This program is free software; you can redistribute it and/or modify it
-#  under the terms and conditions of the GNU General Public License,
-#  version 2, as published by the Free Software Foundation.
-#
-#  This program is distributed in the hope it will be useful, but WITHOUT
-#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU General Public License along with
-#  this program; if not, write to the Free Software Foundation, Inc.,
-#  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2009 Intel Corporation.
 
 # Installation directory of ledmon systemd service unit.
 systemddir = @SYSTEMD_PATH@
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 0820c99d..a56c73a3 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,3 +1,6 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+# Copyright (C) 2024 Intel Corporation.
+
 AM_CPPFLAGS = -I@srcdir@./src/lib/include
 
 EXTRA_DIST=lib_unit_test.c
diff --git a/tests/check_symbol_visibility.sh b/tests/check_symbol_visibility.sh
index c8960070..31d0ed07 100755
--- a/tests/check_symbol_visibility.sh
+++ b/tests/check_symbol_visibility.sh
@@ -1,10 +1,10 @@
 #!/usr/bin/bash
-#
+
 # SPDX-License-Identifier: GPL-3.0-or-later
 # Copyright (C) 2023 Red Hat Inc.
-#
+
 # Ensure we only have shared library symbols which start with "led_*"
-#
+
 
 tmpf=$(mktemp /tmp/ledmon_sym.XXXXXXXX) || exit 1
 
diff --git a/tests/conftest.py b/tests/conftest.py
index 43865591..1c245c6b 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 import logging
 
 LOGGER = logging.getLogger(__name__)
diff --git a/tests/ledctl/parameters_test.py b/tests/ledctl/parameters_test.py
index 7a60072c..32cbf59b 100644
--- a/tests/ledctl/parameters_test.py
+++ b/tests/ledctl/parameters_test.py
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
-# Copyright (C) 2023-2024 Intel Corporation.
+# Copyright (C) 2023 Intel Corporation.
 
 from ledctl.ledctl_cmd import LedctlCmd
 import pytest
diff --git a/tests/lib_unit_test.c b/tests/lib_unit_test.c
index 8c7035a9..30353f79 100644
--- a/tests/lib_unit_test.c
+++ b/tests/lib_unit_test.c
@@ -1,7 +1,5 @@
-/*
- * SPDX-License-Identifier: GPL-3.0-or-later
- * Copyright (C) 2023 Red Hat, Inc.
- */
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright (C) 2023 Red Hat, Inc.
 
 #define _GNU_SOURCE
 #include <stdlib.h>
diff --git a/tests/licensing.py b/tests/licensing.py
new file mode 100755
index 00000000..f9150229
--- /dev/null
+++ b/tests/licensing.py
@@ -0,0 +1,223 @@
+#!/usr/bin/python3.11
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+# Copyright (C) 2024 Intel Corporation.
+
+import argparse, logging, os, re, sys
+from typing import NamedTuple
+
+LOGGER = logging.getLogger(__name__)
+LOGGER.setLevel(logging.DEBUG)
+
+comment_marks = {
+    ".c": '//',
+    ".h": '//',
+    ".am": '#',
+    ".sh": '#',
+    ".ac": '#',
+    ".py": '#',
+    ".pod": '#',
+}
+
+
+# For each used SPDX header, there must be full license file in dir.
+# It does not check file content.
+def check_license_files(path, spdx_licenses):
+    for license in spdx_licenses:
+        if not os.path.isfile(f"{path}/LICENSES/LICENSE.{license}"):
+            raise Exception(
+                f"License {license} does not have a license file in LICENSES directory"
+            )
+
+
+#FIXME: Should it be configurable by Yaml?
+class Directory_license(NamedTuple):
+    licenses: dict[str, set[str]]
+
+
+DIRECTORY_LICENSES: dict[str, Directory_license] = {
+    "src/ledctl":
+    Directory_license(
+        licenses={
+            ".c": ["GPL-2.0-only", "LGPL-2.1-or-later"],
+            ".h": ["GPL-2.0-only", "LGPL-2.1-or-later"],
+            ".am": ["GPL-2.0-only"],
+        }),
+    "src/ledmon":
+    Directory_license(
+        licenses={
+            ".c": ["GPL-2.0-only", "LGPL-2.1-or-later"],
+            ".h": ["GPL-2.0-only", "LGPL-2.1-or-later"],
+            ".am": ["GPL-2.0-only"],
+        }),
+    # NOTE: Files in lib directory must be released under LGPL, be careful when extending.
+    "src/lib":
+    Directory_license(
+        licenses={
+            ".c": ["LGPL-2.1-or-later"],
+            ".h": ["LGPL-2.1-or-later"],
+            ".am": ["GPL-2.0-only"],
+        }),
+    "config":
+    Directory_license(licenses={
+        ".h": ["LGPL-2.1-or-later"],
+    }),
+    # Default, used if file is not placed in directory explicitly listed
+    ".":
+    Directory_license(
+        licenses={
+            ".c": ["GPL-2.0-only", "GPL-3.0-or-later"],
+            ".h": ["GPL-2.0-only"],
+            ".am": ["GPL-2.0-only", "GPL-3.0-or-later"],
+            ".sh": ["GPL-2.0-only", "GPL-3.0-or-later"],
+            ".ac": ["GPL-3.0-or-later"],
+            ".py": ["GPL-3.0-or-later"],
+            ".pod": ["GPL-2.0-only"]
+        }),
+}
+
+
+def get_licenses_set():
+    spdx_licenses = set()
+
+    for directory in DIRECTORY_LICENSES.values():
+        for licenses in directory.licenses.values():
+            spdx_licenses.update(licenses)
+
+    return spdx_licenses
+
+
+# It compares DIRECTORY_LICENSES keys, first match wins. Order matters
+def get_allowed_licenses(path):
+    cwd = os.getcwd()
+
+    for key_dir in DIRECTORY_LICENSES.keys():
+        subpath = os.path.realpath(f"{cwd}/{key_dir}")
+
+        if os.path.dirname(path).startswith(subpath):
+            return DIRECTORY_LICENSES[key_dir].licenses
+
+    raise Exception(f"Cannot find allowed licenses map for {path}")
+
+
+def check_license_header(path, first_line, file_type):
+    allowed_licenses = get_allowed_licenses(path)
+    comment_mark = comment_marks[file_type]
+
+    for license in allowed_licenses[file_type]:
+        license_string = f"{comment_mark} SPDX-License-Identifier: {license}"
+        LOGGER.debug(F"Checking for \"{license_string}\" license string")
+
+        if license_string == first_line:
+            return True
+
+    return False
+
+
+# There are no strong requirements for copyrights and how ofter they should be updated.
+# Keep them in simple form "Copyright (C) <date> Intel Corporation." to not have to update them
+# before each release.
+def check_Intel_copyright(line):
+    copyright = line.partition('Copyright ')[2]
+    regex_pat = r"\(C\) 20[0-9]{2} Intel Corporation.$"
+
+    copyright_line_re = re.compile(regex_pat)
+
+    match = copyright_line_re.match(copyright)
+    if match is None:
+        raise Exception(
+            f"\'{copyright}\' is Intel Copyright in not expected format \'{regex_pat}\'"
+        )
+
+
+def check_copyright_line(line, file_type):
+    comment_mark = comment_marks[file_type]
+
+    if not line.startswith(f"{comment_mark} Copyright"):
+        raise Exception(f'\"{line}\" is not Copyright line')
+
+    if "Intel" in line:
+        check_Intel_copyright(line)
+
+
+def check_licensing(path):
+    file_type = os.path.splitext(path)[1]
+    file = open(path)
+    line = file.readline().strip()
+
+    if line.startswith("#!/"):
+        line = file.readline().strip()
+        # Here comes the interpreter. We expect, SPDX in third line but second line must be empty.
+        if line != "":
+            raise Exception(f"Second line must be empty, it is \"{line}\"")
+        line = file.readline().strip()
+
+    check_license_header(path, line, file_type)
+
+    # Loop for Copyrights. Scan them until empty line is reached.
+    while True:
+        line = file.readline().strip()
+        if line == "":
+            return
+        check_copyright_line(line, file_type)
+
+
+def main():
+
+    ch = logging.StreamHandler()
+    ch.setLevel(logging.INFO)
+    LOGGER.addHandler(ch)
+
+    if not os.path.exists(f"{os.getcwd()}/tests/licensing.py"):
+        LOGGER.error(
+            "The test must be run main repo directory e.g. ./tests/licensing.py"
+        )
+        return 1
+
+    parser = argparse.ArgumentParser(
+        prog="licensing.py", description='Check licenses used in files')
+
+    parser.add_argument(
+        '-f',
+        '--file',
+        action='append',
+        required=True,
+        help='file or dir path to scan, Can be specified multiple times.')
+    parser.add_argument('-l',
+                        '--log-level',
+                        action='store',
+                        required=False,
+                        help="Log level, use python logging module log levels")
+
+    args = parser.parse_args()
+
+    if args.log_level:
+        ch.setLevel(logging.getLevelNamesMapping()[args.log_level])
+
+    path = os.getcwd()
+
+    # Ensure that there is a file with SPDX header in LICENSES directory.
+    check_license_files(path, get_licenses_set())
+
+    files = []
+    # Normalize them to full paths
+    for file in args.file:
+        files.append(f"{path}/{file}")
+
+    ret = 0
+    for file in files:
+        LOGGER.info(f"Checking {file}")
+        try:
+            check_licensing(file)
+        except Exception as e:
+            LOGGER.error(f"\t{e}")
+            LOGGER.error(f"Check failed for {file}")
+            LOGGER.error("Please refer to CONTRIBUTING.md")
+            ret = 1
+        else:
+            LOGGER.info(f"Passed {file}")
+    return ret
+
+
+if __name__ == '__main__':
+    sys.exit(main())
diff --git a/tests/runtests.sh b/tests/runtests.sh
index af464aa7..ba90c4bd 100755
--- a/tests/runtests.sh
+++ b/tests/runtests.sh
@@ -1,5 +1,7 @@
 #!/usr/bin/bash
-#
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 
 PYTEST=pytest