I know that schools like U.C. Berkeley have specific counselors and programs that can help you with the process and can give you a little bit of an advantage compared to people who don’t sign up for it. I’m applying to most of the U.C.'s so any help is appreciated.
Email them. They are constantly busy, but you can try to email the department. Wait for a response. A number of departments are out on summer break.
UCs are notorious for being inundated with emails from students AND eager applicants. It might take awhile. When I applied and was eventually accepted to Berkeley, LA, and SD, I often never received responses. Be patient and insistent, though!