Taking summer classes at another UC

Hello, I’m a student at UC Berkeley and want to take summer courses at UCLA. I know of assist.org and how they show an exact equivalent course for another campus for prerequisites and requirements, but that is only for a community college to a UC campus. How do you see the equivalent courses across UC campuses? Thanks!

Courses are approved by the advisor in your college. You need to bring them the syllabus of the course you would like to take in UCLA and get an approval for that specific class.