Yes, but I wouldn't rule out a dual cert (A36/A572) or a tri-cert (A36/A572/A992) on channels . I think that before it's over, channels will end up being produced to meet A992 specs. Wide flanges used to be A36. If you wanted A572 Gr. 50 you had to special order it. Then it went to dual cert A36/A572, then it went to tri-cert A36/A572/A992. Now it's A992. I think that channel production will follow suit.
The spec (A992) is titled Standard specification for structural steel shapes.
AISC references W,HP, C, MC, WT, MT, ST, 2C, 2MC shapes (angle is not referenced as a shape)
A6 references W, HP, S, M, C, MC, and L shapes (L being angle)
definition:
StrucĀ“tur`al shape
1. (Engin. & Arch.) The shape of a member especially adapted to structural purposes, esp. in giving the greatest strength with the least material.
DOT definition:
structural shapes - the various types of rolled iron and steel having flat, round, angle, channel, "I", "H", "Z" and other cross-sectional shapes adapted to the construction of the metal members incorporated in reinforced foundations, substructures and superstructures
Probably not a lot of help