I know that ucs share test scores, but I was curious if they also shared transcripts. Meaning that you only have to send your transcripts to one campus.
I think you only send a transcript to the UC campus you are going to after you officially accept their offer. I believe you have to do your SIR (Statement of Intent to Register) by May 1, and submit your final transcript by July 1. They then verify that the courses and grades you recorded on your application were correct and that your senior courses and grades meet their requirements.
Above poster is correct^^^. The only reason you would send a transcript to a UC prior to decisions is if they ask for a supplemental.