Cal. Bus. & Prof. Code § 5018
The board may by regulation, prescribe, amend, or repeal rules of professional conduct appropriate to the establishment and maintenance of a high standard of integrity and dignity in the profession. In addition to the requirements contained in Chapter 4 (commencing with Section 11370) of Part 1 of Division 3 of Title 2 of the Government Code, a copy of the rules shall be mailed to every holder of a license under this chapter at least 30 days prior to a date named for a public hearing held for the purpose of receiving and considering objections to any of the proposed provisions. Every licensee of the California Board of Accountancy in this state shall be governed and controlled by the rules and standards adopted by the board.
Ca. Bus. and Prof'l. Code § 5018