diff --git a/.github/workflows/run_tests_osx.yml b/.github/workflows/run_tests_osx.yml
index 8f2d9d62af..3293dcc7cb 100644
--- a/.github/workflows/run_tests_osx.yml
+++ b/.github/workflows/run_tests_osx.yml
@@ -6,7 +6,7 @@
 
 name: Run macOS-based netCDF Tests
 
-on: [pull_request,workflow_dispatch]
+on: [push,pull_request,workflow_dispatch]
 
 concurrency:  
   group: ${{ github.workflow}}-${{ github.head_ref }}  
diff --git a/.github/workflows/run_tests_s3.yml b/.github/workflows/run_tests_s3.yml
index ddbb353c8e..cf45621955 100644
--- a/.github/workflows/run_tests_s3.yml
+++ b/.github/workflows/run_tests_s3.yml
@@ -9,7 +9,7 @@
 
 name: Run S3 netCDF Tests (under Ubuntu Linux)
 
-on: [workflow_dispatch]
+on: [push,workflow_dispatch]
 
 concurrency:  
   group: ${{ github.workflow}}-${{ github.head_ref }}  
diff --git a/.github/workflows/run_tests_ubuntu.yml b/.github/workflows/run_tests_ubuntu.yml
index 64b91bb99a..ab8ce5dcfa 100644
--- a/.github/workflows/run_tests_ubuntu.yml
+++ b/.github/workflows/run_tests_ubuntu.yml
@@ -4,7 +4,7 @@
 
 name: Run Ubuntu/Linux netCDF Tests
 
-on: [pull_request, workflow_dispatch]
+on: [push,pull_request, workflow_dispatch]
 
 concurrency:  
   group: ${{ github.workflow}}-${{ github.head_ref }}  
diff --git a/.github/workflows/run_tests_win_cygwin.yml b/.github/workflows/run_tests_win_cygwin.yml
index 6e124448ed..27486bbc59 100644
--- a/.github/workflows/run_tests_win_cygwin.yml
+++ b/.github/workflows/run_tests_win_cygwin.yml
@@ -1,6 +1,6 @@
 name: Run Cygwin-based tests
 
-on: [pull_request,workflow_dispatch]
+on: [push,pull_request,workflow_dispatch]
 
 concurrency:  
   group: ${{ github.workflow}}-${{ github.head_ref }}  
diff --git a/.github/workflows/run_tests_win_mingw.yml b/.github/workflows/run_tests_win_mingw.yml
index 978275cf6c..75ac3174cd 100644
--- a/.github/workflows/run_tests_win_mingw.yml
+++ b/.github/workflows/run_tests_win_mingw.yml
@@ -9,7 +9,7 @@ name: Run MSYS2, MinGW64-based Tests (Not Visual Studio)
 env:
   CPPFLAGS: "-D_BSD_SOURCE"
 
-on: [pull_request,workflow_dispatch]
+on: [push,pull_request,workflow_dispatch]
 
 concurrency:  
   group: ${{ github.workflow}}-${{ github.head_ref }}  
diff --git a/nc_test/test_byterange.sh b/nc_test/test_byterange.sh
index 583c2eb7d5..7ec0f46551 100755
--- a/nc_test/test_byterange.sh
+++ b/nc_test/test_byterange.sh
@@ -15,7 +15,7 @@ fi
 if test "x$FEATURE_S3TESTS" != xno ; then
 URL4a="https://s3.us-east-1.amazonaws.com/noaa-goes16/ABI-L1b-RadC/2017/059/03/OR_ABI-L1b-RadC-M3C13_G16_s20170590337505_e20170590340289_c20170590340316.nc#mode=bytes"
 URL4c="https://noaa-goes16.s3.amazonaws.com/ABI-L1b-RadF/2022/001/18/OR_ABI-L1b-RadF-M6C01_G16_s20220011800205_e20220011809513_c20220011809562.nc#mode=bytes,s3"
-# Test alternate URL with no specified region
+# Test alternate URL with no specified region and using s3 protocol
 URL4e="s3://noaa-goes16/ABI-L1b-RadC/2017/059/03/OR_ABI-L1b-RadC-M3C13_G16_s20170590337505_e20170590340289_c20170590340316.nc#mode=bytes"
 fi
 if test "x$FEATURE_S3TESTS" = xyes ; then
diff --git a/nczarr_test/run_external.sh b/nczarr_test/run_external.sh
index 4796dc6d02..bd4285f98c 100755
--- a/nczarr_test/run_external.sh
+++ b/nczarr_test/run_external.sh
@@ -16,21 +16,24 @@ cd $ISOPATH
 
 TESTCASES=
 if test "x$FEATURE_BYTERANGE" = xyes && test "x$FEATURE_S3" = xyes && test "x$FP_ISCYGWIN" = x ; then
-TESTCASES="${TESTCASES} OR_ABI;;http://s3.amazonaws.com/noaa-goes16/ABI-L1b-RadF/2022/001/18/OR_ABI-L1b-RadF-M6C01_G16_s20220011800205_e20220011809513_c20220011809562.nc#mode=bytes,s3"
-TESTCASES="${TESTCASES} cesmLE;blosc;http://s3.us-west-2.amazonaws.com/ncar-cesm-lens/atm/daily/cesmLE-20C-FLNS.zarr#mode=zarr,s3"
-# Test region defaulting and s3 inferencing
-TESTCASES="${TESTCASES} wtk;;https://nrel-pds-wtk.s3.amazonaws.com/wtk-techno-economic/pywtk-data/met_data/0/0.nc#mode=bytes"
+TESTCASES="${TESTCASES} OR_ABI;;;http://s3.amazonaws.com/noaa-goes16/ABI-L1b-RadF/2022/001/18/OR_ABI-L1b-RadF-M6C01_G16_s20220011800205_e20220011809513_c20220011809562.nc#mode=bytes,s3"
+TESTCASES="${TESTCASES} cesmLE;blosc;;http://s3.us-west-2.amazonaws.com/ncar-cesm-lens/atm/daily/cesmLE-20C-FLNS.zarr#mode=zarr,s3"
+# Test TEST_REGION defaulting and s3 inferencing
+TESTCASES="${TESTCASES} wtk;;us-west-2;https://nrel-pds-wtk.s3.amazonaws.com/wtk-techno-economic/pywtk-data/met_data/0/0.nc#mode=bytes"
 fi
 
 testcase() {
 NM=`echo "$1" | cut -d';' -f1`
 FILT=`echo "$1" | cut -d';' -f2`
-URL=`echo "$1" | cut -d';' -f3`
+REG=`echo "$1" | cut -d';' -f3`
+URL=`echo "$1" | cut -d';' -f4`
 echo "*** Test: $NM = $URL"
 rm -f "tmp_external_$NM.cdl"
 if test "x$FILT" != x ; then
   if avail $FILT; then
+    if test "x$REG" != x ; then export TEST_REGION="$REG"; fi
     ${NCDUMP} -h -s -n $NM $URL > "tmp_external_${NM}.cdl"
+    unset TEST_REGION
   fi
 fi
 }