Cal. Code Regs. tit. 4, § 1689
(a) A racing association, fair, or authorized training facility may not permit any person to be mounted on a horse on the racetrack, or be mounted in or riding on a sulky or jog cart, or work as a member of the gate crew unless the person is wearing a properly fastened safety helmet.
(b) Safety helmets required under subsection (a) of this rule shall comply with one of the following product standards:
Note: Authority cited: Sections 19420 and 19440, Business and Professions Code. Reference: Sections 19481 and 19460, Business and Professions Code.
1. Amendment of section and new Note filed 7-26-94; operative 8-25-94 (Register 94, No. 30).
2. Change without regulatory effect amending Note filed 12-23-96 pursuant to section 100, title 1, California Code of Regulations (Register 96, No. 52).
3. Amendment filed 8-16-2010; operative 9-15-2010 (Register 2010, No. 34).
4. Amendment of subsection (a) and new subsection (a)(3) filed 2-21-2018; operative 4-1-2018 (Register 2018, No. 8).