UCLA requires FAFSA, Need Access (costs $15), an internal financial aid form, and certification of your filed tax form.
FAFSA: okay to leave out parental income info
For full consideration of grants & scholarships, UCLA requires parental income info to be entered in Need Access (your parents have their own section they can log onto and fill out), as well as certification of filed tax forms from both you and your parents. Even if you're over 30 and have been financially independent for many years.
If, on the other hand, you're only interested in applying for loans, no parental info is required.