This is for classes such as :3.8.ART-B, 3.8.BIB-B, 3.8.HR-B, 3.8.LA-B, 3.8.MAT-Math 76, 3.8.MAT-Algebra 1/2, 3.8.PE-B, 3.8.SCI-B, 3.8.SS-B
Here is the list of approved skills by the NAD. Only these can be used. https://datarollup.nadeducation.org/2014-2015/skills