Rocklin's Pool Regulations exempt hot tubs and spas from the full pool-enclosure rule IF they are equipped with a locking safety cover meeting ASTM-ES 13-89 (ASTM Emergency Performance Specification for safety covers). Otherwise the spa is treated as a swimming pool and must comply with §17.08.150's 5-foot fence and the SB 442 dual-feature drowning-prevention rule. Electrical permits under CEC Article 680 are required for any 240V wiring.
Per the City of Rocklin Pool Regulations, hot tubs and spas are 'exempted if equipped with a locking safety cover that complies with the American Society for Testing Materials-Emergency Performance Specifications (ASTM-ES 13-89).' This mirrors Cal. Health & Safety Code §115921(c), which excludes a 'hot tub or spa with a locking safety cover that complies with the ASTM' from the definition of 'swimming pool.' Without such a cover, a hot tub or spa containing water deeper than 18 inches is a swimming pool and must comply with §17.08.150 (5 ft fence, self-latching gates), the SB 442 dual-feature requirement of H&S Code §115922(b), and CEC Article 680 electrical bonding. Plug-in 120V portable spas under 5 hp typically require only an electrical inspection; hard-wired 240V spas require a full electrical permit under Title 15 / California Electrical Code. Setbacks fall under Title 17 accessory-structure rules (verify with planning).
Operating a hot tub without a compliant locking cover OR a compliant enclosure exposes the homeowner to Code Enforcement citations and civil liability under the Swimming Pool Safety Act. Unpermitted 240V electrical work is a separate Title 15 violation.
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