Aren't California public colleges required to let residents use library?

Question

It was my understanding that public colleges and universities in California were required to grant outside, public access to the use of the library collection, with certain restrictions, including priority use given to staff and students.

Some colleges in this state have been restricting access lately, to an extent unheard of ten or twenty years ago, including banning "visitors" from stack areas and access to books. What specific laws or California Regulations are in place that require campuses to grant access to the public?

Answer 1

The following page from the Univ. California Office of the President outlines your rights as an "external user" of UC libraries.
http://www.ucop.edu/ucophome/coordrev/policy/1-23-92att.html