California Code, Education Code - EDC § 35183.5

(a)(1) Each schoolsite shall allow for outdoor use during the schoolday, articles of sun-protective clothing, including, but not limited to, hats.

(2) Each schoolsite may set a policy related to the type of sun-protective clothing, including, but not limited to, hats, that pupils will be allowed to use outdoors pursuant to paragraph (1). Specific clothing and hats determined by the school district or schoolsite to be gang-related or inappropriate apparel may be prohibited by the dress code policy.

(b)(1) Each schoolsite shall allow pupils the use of sunscreen during the schoolday without a physician's note or prescription.

(2) Each schoolsite may set a policy related to the use of sunscreen by pupils during the schoolday.

(3) For purposes of this subdivision, sunscreen is not an over-the-counter medication.

(4) Nothing in this subdivision requires school personnel to assist pupils in applying sunscreen.