Are there any formal classification and naming systems of tandem repeats?

[hq66]

Hi!
Centromics is a user-friendly tool to detect the persumed centromeric regions. The output file "{prefix}.trf.count" shows different "CL" contents among the chromosomes as follows:
#chrom start end CL1 CL2 CL3 CL4 CL5 CL6 CL7
A01 18870000 18880000 8724.0 8532.0 0 250.0 0 0 0
A01 18880000 18890000 9542.0 9587.0 0 0 0 0 0
A01 18890000 18900000 9878.0 9867.0 0 0 0 0 0
But the "CL" seems are not a formal name of tandem repeats, I wonder are there any formal classification and naming systems of tandem repeats.
Thanks!