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

Neither the Colusa County Zoning Code nor the building-permit materials impose a county-specific pool barrier rule, so the controlling standard is California's Swimming Pool Safety Act (Health and Safety Code sections 115920 to 115929), enforced through the County Building Department. Under Health and Safety Code 115922(a), when a building permit is issued for a new pool or spa, or for the remodel of an existing one, at a private single-family home, the pool or spa must be equipped with at least two of seven listed drowning-prevention safety features. One of those options is an isolating enclosure meeting Health and Safety Code 115923. That enclosure must have a minimum height of 60 inches, a maximum vertical clearance of 2 inches from the ground to the bottom of the barrier, and gates that open away from the pool and are self-closing with a self-latching device. Other accepted features include ASTM-compliant removable mesh fencing with a self-closing/self-latching gate, an ASTM F1346 safety cover, exit alarms on doors with direct pool access, self-closing/self-latching devices on those doors with a release at least 54 inches above the floor, and ASTM F2208 pool alarms. Because these are state requirements, they apply uniformly across the unincorporated county.