Cal. CIV § 1799.203

(a) It shall be deemed compliance with Section 1799.202 if a copy of any consumer contract which is subject to Article 10 (commencing with Section 1810.1) of Chapter 1 of Title 2, or which is an open-end consumer credit plan subject to Section 127 of the federal Truth in Lending Act (15 U.S.C. 1637), is delivered or mailed to the consumer before the consumer enters into a transaction covered and permitted by the consumer contract. (b) Section 1799.202 does not apply to any of the following: (1) A consumer contract for the purchase of goods by mail if the seller permits the consumer to examine the goods for seven calendar days and cancel the consumer contract and receive a full refund within 30 calendar days for returned unused and undamaged goods. (2) A written contract created by, and consisting of, an exchange of letters by mail. (3) Any consumer contract which is required to be mailed or delivered at a time prescribed by another law of this state or the United States.