California Code, Education Code - EDC § 51240.5

(a) A pupil in kindergarten or any of grades 1 to 12, inclusive, shall be granted an accommodation in connection with any physical activity components of a physical education course during a period of religious fasting upon the submission to the school principal of written notification from the pupil's parent or guardian, if the pupil is less than 18 years of age, or from the pupil, if the pupil is 18 years of age or older, that the pupil is participating in religious fasting.

(b) For purposes of calculating compliance with the instructional time requirements of paragraph (7) of subdivision (a) of Section 51210, subdivision (a) of Section 51222, and subdivision (a) of Section 51223, a pupil shall be credited with instructional time for any time for which the pupil was granted an accommodation in connection with engaging in physical activity components pursuant to this section, upon completion of alternative assignments or activities by the pupil.