Cal. Civil Code § 1789.7

(a) This title does not apply where it is inconsistent with, or infringes upon, federal law or regulation. (b) This title does not apply to the rights and obligations of a cardholder and a card issuer with respect to the use of a credit card arising from the purchase of goods or services conducted through an electronic commercial service. For the purpose of this subdivision, “cardholder,” “card issuer,” and “credit card” have the same meaning as those terms are given in the federal Fair Credit Billing Act (15 U.S.C. Sec. 1601 et seq.) and regulations adopted thereunder, or, if applicable, the Song-Beverly Credit Card Act of 1971 (Title 1.3 (commencing with Section 1747)). (c) This title does not apply to the rights and obligations of a consumer and a financial institution with respect to any electronic fund transfer arising from purchase of goods or services conducted through an electronic commercial service. For the purposes of this subdivision, “consumer,” “financial institution,” and “electronic fund transfer” have the same meaning as those terms are given in the Electronic Fund Transfer Act (15 U.S.C. Sec. 1601 et seq.) and regulations adopted thereunder.