Cal. Civil Code § 1789.30

(a) (1) Every check casher, as applicable to the services provided, shall post a complete, detailed, and unambiguous schedule of all fees for (A) cashing checks, drafts, money orders, or other commercial paper serving the same purpose, (B) the sale or issuance of money orders, and (C) the initial issuance of any identification card. Each check casher shall also post a list of valid identification which is acceptable in lieu of identification provided by the check casher. The information required by this section shall be clear, legible, and in letters not less than one-half inch in height. The information shall be posted in a conspicuous location in the unobstructed view of the public within the check casher’s premises. (2) A check casher may be required to file a return required by Section 18631.7 of the Revenue and Taxation Code. (b) (1) Except as provided in paragraph (2), this section shall become operative December 31, 2004. (2) (A) Except as provided in subparagraph (B), paragraph (2) of subdivision (a) shall apply to checks cashed on or after January 1, 2006. (B) The amendments to this section made by the act adding this subparagraph shall become operative on January 1, 2008.