Bb/sa & cc/sa?

Ok, I'm sure everyone knows the answer to this but I don't so here goes. Is BB/SA and CC/SA for the Mustangs and DPs that last year were in B and C/SA? Will that put the F-bodies back in B and C that went in D to stay away from the quicker cars? Yes, again, I'm sure this is old news but I'm trying to catch up.

Thanks.