California Code of Regulations (Cal. Code Reg.): Title 22 – Social Security > Cal. Code Reg. §65539. Lifesaving and Control of Public Pool Users
(a) If the pool operator provides lifeguard services, they shall be provided in accordance with Health and Safety Code sections 116028, 116033, and 116045. The pool operator shall ensure that written proof of compliance with the certification requirements of Health and Safety Code sections 116028 and 116033 for each lifeguard is available for inspection by the enforcing agent at the public pool.
(b) Where lifeguard service is provided, the pool operator shall ensure lifeguards maintain continuous surveillance of the pool users.
(c) Lifeguards on duty shall only provide lifeguard services as defined in Health and Safety Code section 116028.
(d) Lifeguards shall wear swimming apparel that clearly identifies them as lifeguards to pool users.