Cal. Bus. & Prof. Code § 9832.5

(a) Registrations issued under this chapter shall expire no more than 12 months after the issue date. The expiration date of registrations shall be set by the director in a manner to best distribute renewal procedures throughout the year.
(b) To renew an unexpired registration, the service contractor shall, on or before the expiration date of the registration, apply for renewal on a form prescribed by the director, and pay the renewal fee prescribed by this chapter.
(c) To renew an expired registration, the service contractor shall apply for renewal on a form prescribed by the director, pay the renewal fee in effect on the last regular renewal date, and pay all accrued and unpaid delinquency and renewal fees. The bureau may impose conditions on a registration issued pursuant to this subdivision.
(d) Renewal is effective on the date that the application is filed, the renewal fee is paid, and all delinquency fees are paid.
(e) For purposes of implementing the distribution of the renewal of registrations throughout the year, the director may extend, by not more than six months, the date fixed by law for renewal of a registration, except that, in that event, any renewal fee that may be involved shall be prorated in such a manner that no person shall be required to pay a greater or lesser fee than would have been required had the change in renewal dates not occurred.
(f) A registration that is not renewed within six years of its expiration shall be canceled, but if the holder of the registration submits a new application and meets all of the following requirements, the registration may be reissued or reinstated:
1. (1) No fact, circumstance, or condition exists which would justify denial of registration under Section 480.
2. (2) The registrant pays all renewal, delinquency, and penalty fees that have accrued since the date on which the registration was last renewed.
(g) This section shall remain in effect only until January 1, 2028, and as of that date is repealed.