@socalmom007 For the CSUs, you can send one set of SAT scores to CSU Mentor. If you have an ACT score, it’s different. Here’s a page with the details: http://www.csumentor.edu/planning/high_school/sat_code.asp
For the UCs, you just send scores to any one of the UCs and they all have access to the scores.
You don’t send transcripts or letters of recommendation to either one. (If your kid decides to attend a UC or CSU, you will send the transcript to that specific college in June.)