Com. Code, § 9201

(a) Except as otherwise provided in this code, a security agreement is effective according to its terms between the parties, against purchasers of the collateral, and against creditors.

(b) A transaction subject to this division is subject to any applicable rule of law which establishes a different rule for consumers; to Chapter 5 (commencing with Section 17200) of Part 2 of Division 7 of the Business and Professions Code; Chapter 1 (commencing with Section 17500) of Part 3 of Division 7 of the Business and Professions Code; the Retail Installment Sales Act, Chapter 1 (commencing with Section 1801) of Title 2 of Part 4 of Division 3 of the Civil Code; the Automobile Sales Finance Act, Chapter 2b (commencing with Section 2981) of Title 14 of Part 4 of Division 3 of the Civil Code; Part 4 (commencing with Section 1738) of Division 3 of the Civil Code, with respect to the applicable provisions of Titles 1 (commencing with Section 1738), 1.3 (commencing with Section 1747), 1.3A (commencing with Section 1748.10), 1.3B (commencing with Section 1748.20), 1.4 (commencing with Section 1749), 1.5 (commencing with Section 1750), 1.6 (commencing with Section 1785.1), 1.61 (commencing with Section 1785.41), 1.6A (commencing with Section 1786), 1.6B (commencing with Section 1787.1), 1.6C (commencing with Section 1788), 1.6D (commencing with Section 1789), 1.6E (commencing with Section 1789.10), 1.6F (commencing with Section 1789.30), 1.7 (commencing with Section 1790), 1.8 (commencing with Section 1798), 1.83 (commencing with Section 1799.5), 1.84 (commencing with Section 1799.8), 1.85 (commencing with Section 1799.90), 1.86 (commencing with Section 1799.200), 2 (commencing with Section 1801), 2.4 (commencing with Section 1812.50), 2.5 (commencing with Section 1812.80), 2.6 (commencing with Section 1812.100), 2.7 (commencing with Section 1812.200), 2.8 (commencing with Section 1812.300), 2.9 (commencing with Section 1812.400), 2.95 (commencing with Section 1812.600), 2.96 (commencing with Section 1812.620), 3 (commencing with Section 1813), 4 (commencing with Section 1884), and 14 (commencing with Section 2872); the Industrial Loan Law, Division 7 (commencing with Section 18000) of the Financial Code; the Pawnbroker Law, Division 8 (commencing with Section 21000) of the Financial Code; the California Financing Law, Division 9 (commencing with Section 22000) of the Financial Code; and the Mobilehomes-Manufactured Housing Act of 1980, Part 2 (commencing with Section 18000) of Division 13 of the Health and Safety Code; and to any applicable consumer protection statute, regulation, or law.

(c) In case of conflict between this division and a rule of law, statute, or regulation described in subdivision (b), the rule of law, statute, or regulation controls. Failure to comply with a statute or regulation described in subdivision (b) has only the effect the statute or regulation specifies.

(d) This division does not do either of the following:

(1) Validate any rate, charge, agreement, or practice that violates a rule of law, statute, or regulation described in subdivision (b).

(2) Extend the application of the rule of law, statute, or regulation to a transaction not otherwise subject to it.