December SAT? Can I take it?

If I take the December SAT will it still count towards admission to UC colleges?

From the UC website:
Freshman applicants for fall 2017 must arrange to have official score reports sent to us by December 2016. If you plan to take an exam in December, indicate the planned test date on your admission application.

How about CSU?

Some CSU’s will take only up to the November SAT sitting. Off the top of my head, I know SDSU and Humbodlt have the November deadline but not sure about the others. You need to check each CSU website for their testing deadline.