They base admission on 10th and 11th year grades. However, they will revoke admission if 12th grade is too low. I believe for most UCs it’s a minimum 3.0 senior year.

The real bummer is that it might not happen until the summer when the colleges finally get final transcripts from high schools. I know one kid who didn’t find out until he drove with his family from San Diego to UC Davis that his acceptance had been revoked.

The other kid was expecting to go to SDSU. At least he didn’t have to drive 9 hours to find out the bad news.