Cal. Financial Code § 22804

(a) The commissioner shall adopt regulations governing the disclosures described in paragraphs (1) to (5), inclusive, of subdivision (b) of Section 22802 and subdivisions (a) to (e), inclusive, of Section 22803. Those regulations shall include all of the following: (1) Definitions, contents, or methods of calculations for each of the disclosure items set forth in each applicable paragraph of subdivision (b) of Section 22802 and subdivisions (a) to (f), inclusive, of Section 22803. (2) Requirements concerning the time, manner, and format of the applicable disclosures described in subdivision (b) of Section 22802 and subdivisions (a) to (f), inclusive, of Section 22803. (b) The commissioner shall adopt regulations concerning the annualized rate disclosure described in paragraph (6) of subdivision (b) of Section 22802 and subdivision (f) of Section 22803. Those regulations shall include all of the following: (1) A determination of the appropriate method to express the annualized rate disclosure and the types of fees and charges to be included in that calculation. (2) When providers shall be permitted to disclose an estimated annualized rate, and how that estimate shall be calculated. The method of calculation determined by this paragraph shall specify the accuracy requirements and tolerance allowances for the calculation, and the types of fees and charges to be included in the calculation. (3) Requirements concerning the time, manner, and format of the disclosure. (c) A provider shall not be required to comply with the disclosure requirements of this division until the final regulations are adopted by the commissioner pursuant to this section and become effective on the applicable date described in Section 11343.4 of the Government Code.