California Code, Insurance Code - INS § 12753

(a) A home protection company shall maintain a reserve for unearned premiums in an amount not less than 40 percent of the aggregate premiums charged on its contracts currently in force.

Amounts to be reserved shall be on a 12-month basis.  Where the contract is for a period of more than 12 months, the reserve for unearned premiums for the period beyond 12 months shall be 100 percent of the pro rata portion of the contract fee attributable to the period of coverage in excess of 12 months.  The unearned premium reserve for contracts exceeding 12 months shall be reduced to not less than 40 percent of the pro rata portion of the contract fee applicable to the next succeeding 12-month period, as of the first day of the succeeding 12-month period, and each succeeding 12-month period thereafter during which the contract is in effect.

Where the home protection contract provides coverage during the selling or listing period of the real property to which the contract applies, the home protection contract fee applicable to this period of coverage shall be deemed fully earned upon the close of escrow, and receipt of payment of the applicable contract fee.

(b) For purposes of this section, such reserve shall not include protection contract fees on home protection contracts to the extent provision is made for reinsurance of the outstanding risk on such contracts.

(c) The commissioner may, by regulation, prescribe the format by which the reserve shall be reported.