California Code, Health and Safety Code - HSC § 18931.5

(a) Each state agency that adopts or proposes building standards shall pay annually to the California Building Standards Commission a proportionate share of the cost of the review and publication of building standards which are published or proposed to be published in the California Building Standards Code.

(b) The commission shall determine the proportional cost to be paid for review of existing building standards and the amount to be paid for review of building standards, adopted or proposed by a state agency, that have been submitted for publication in the California Building Standards Code.