California Code, Revenue and Taxation Code - RTC § 20563

(a) The claim on which the assistance is based shall be filed after June 30 of the fiscal year for which assistance is claimed but on or before October 15 of the fiscal year succeeding the fiscal year for which assistance is claimed. The Franchise Tax Board may thereafter accept claims through June 30 of the fiscal year succeeding the fiscal year for which assistance is claimed.

(b) The state shall assist the claimant after July 15 and before November 15 of the calendar year in which the claim is filed, except that if the claim is defective, assistance shall be made as promptly as is practicable after the claim has been perfected.

(c) A claimant who, because of a medical incapacity, is prevented from filing a timely claim, may file a claim within six months after the end of his or her medical incapacity or three years succeeding the end of the fiscal year for which assistance is claimed, whichever date is earlier.