Ed. Code, § 89529.17

(a) When an employee is disabled, whether temporarily or permanently, the employee shall become entitled, subject to the provisions of this article, to receive nonindustrial disability benefits in an amount equal to one-half pay, but not to exceed one hundred twenty-five dollars ($125) per week, payable monthly for a period not exceeding 26 weeks for any one disability benefit period, but in no case shall benefits be payable for any day on and after death or separation or retirement from state service.

(b) For purposes of this section, the “full pay” of a part-time or intermittent employee only shall be established in accordance with the following:

(1) Where the part-time employment is regularly scheduled and is a fixed proportion of the established workweek, the payments shall be determined on the basis of that proportionate part of the monthly rate.

(2) Where employment is intermittent or irregular, the payments shall be determined on the basis of the proportionate part of a monthly rate established by the total hours actually employed in the 18 monthly pay periods immediately preceding the pay period in which the disability begins as compared to the regular rate for a full-time employee in the same group or class.