Ins. Code, § 10089.23

(a) (1) If at any time following the payment of earthquake claims and claim expenses the authority’s available capital is reduced to less than three hundred fifty million dollars ($350,000,000), or if at any time the authority’s available capital is insufficient to pay benefits and continue operations, the authority shall have the power to assess participating insurance companies subject to the maximum limits as set forth in this section and Section 10089.30. The assessment shall be limited to the amount necessary to pay the outstanding or expected claims and claim expenses of the authority and to return the authority’s available capital to three hundred fifty million dollars ($350,000,000), as determined by the board, subject to approval by the commissioner.

(2) Each participating insurer’s assessment shall be determined by multiplying the percentage share of the authority’s total gross written premium that is attributable to that participating insurer’s sales of authority insurance policies, as of April 30 of the immediately preceding year or the most recent year for which premium data not more than one year old are available, by the amount of the total assessment sought by the authority.

(3) The maximum permissible insurer assessments pursuant to this section and Sections 10089.30 and 10089.31 shall be reduced uniformly by multiplication of the maximum assessments and other amounts provided in those sections by the percentage of the total residential property insurance market share participation attained by the authority. The total amount of all assessments levied on participating insurance companies by the authority pursuant to this section shall not exceed three billion dollars ($3,000,000,000), regardless of the frequency or severity of earthquake losses at any and all times subsequent to the creation of the authority. Once a participating insurer has paid, pursuant to this section, amounts equal to the percentage share of the authority’s total gross written premium attributable to that participating insurer’s sales of authority insurance policies, as of April 30 of the immediately preceding year or the most recent full year for which premium data not more than one year old are available, multiplied by three billion dollars ($3,000,000,000) reduced as provided in this paragraph from the maximum assessment, the authority’s power to assess that insurer under this section shall cease and the authority shall be prohibited from levying additional assessments on that insurer pursuant to this section.

(4) Beginning December 31 of the first year of operations, and each December 31 thereafter, the board shall adjust the maximum permissible insurer assessments pursuant to this section, the maximum permissible insurer assessments pursuant to Sections 10089.30 and 10089.31, the maximum permissible authority policyholder assessment pursuant to Section 10089.29, and the maximum permissible bond issuances or other debt financing issued or secured by the Treasurer pursuant to Section 10089.29 to reflect the market share of new insurers entering into the authority as authorized by Sections 10089.15 and 10089.16 and participating insurers withdrawing from the authority as authorized by Section 10089.19. The adjustments shall be made in the same manner as authorized by paragraph (3).

(b) In the case of any insurer assessment, the authority shall cause to be sent to each participating insurer a notice of that insurer’s assessment, and full payment shall be due within 30 days and shall be overdue after 30 days. Penalties and interest shall be assessed for late payments in the same manner as provided for late payments of the insurer gross premium tax pursuant to Section 12258 of the Revenue and Taxation Code. The board may waive the penalties and interest for good cause shown. The board shall make every effort to assess insurers only for funds reasonably anticipated to be necessary for claims payments and claim expenses and to return the authority’s available capital to three hundred fifty million dollars ($350,000,000).

(c) Notwithstanding the other provisions of this section, the aggregate assessment the authority is authorized by this section to impose shall be reduced to zero on December 1, 2008, with respect to earthquake events that commence on or after December 1, 2008.

(d) The authority shall not assess a participating insurer under this section based on any insurance business that is attributable to the insurer selling the insurer’s insurance products that supplement or augment the basic residential earthquake insurance provided by the authority.