California penal code section 602
(1) (m) Entering and occupying real property or structures of any kind without the consent of the owner, the owner's agent, or the person in lawful possession. - See more at: http://codes.findlaw.com/ca/penal-code/pen-sect-602.html#sthash.NgsgPUEn.dpuf
(2) Any person convicted of a violation of paragraph (1) shall be punished as follows:
(A) As an infraction, by a fine not exceeding one hundred dollars ($100).
- See more at: http://codes.findlaw.com/ca/penal-code/pen-sect-602.html#sthash.NgsgPUEn.dpuf