Solano County, CA Swimming Pools & Spas: Fencing Requirements (2026)

California state law preempts local pool barrier rules and applies countywide, including Vallejo, Fairfield, Vacaville, and unincorporated communities like Suisun Valley, Cordelia, English Hills, and Elmira. Per HSC §115923, a permanent pool enclosure must be at least 60 inches high, with no more than 2 inches of vertical clearance between the bottom of the barrier and ground, and any gaps must not pass a 4-inch sphere. Latches must sit at least 60 inches above ground, and the outside surface must be free of handholds. Per HSC §115922, when a building permit is issued for a new pool, spa, or pool remodel, the pool must include at least two of seven approved drowning prevention features: (1) a compliant enclosure, (2) removable mesh fencing meeting ASTM F2286 with self-closing/self-latching gate, (3) an ASTM F1346 safety cover, (4) exit alarms on house doors providing direct pool access, (5) self-closing/self-latching devices on doors with release at least 54 inches above the floor, (6) a pool alarm meeting ASTM F2208, or (7) other equivalent protection independently verified. Building permits for pools are issued through Solano County Building Safety Services, which adopts the California Building Code including CBC §3109.