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Fullerton, CA Swimming Pools & Spas: Fencing & Safety Requirements (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing law
FMC 14.04.150 & 14.04.160; California HSC 115920-115929
Fullerton departure from state law
Isolation enclosure is mandatory; only one additional feature can be substituted
Minimum barrier height
60 inches (5 feet)
Maximum ground clearance
2 inches under barrier
Maximum opening size
Less than 4 inches (no 4-inch sphere passage)
Gate requirement
Self-closing, self-latching, opens away from pool, latch at least 60 inches above ground
Walking path
Minimum 3-foot-wide path between barrier and water
Door protection on house walls
Required where wall completes enclosure; cannot also count as second feature
Enforcement
Fullerton Building & Safety (714) 738-6856; Code Enforcement (714) 738-6553

Summary

Fullerton has locally amended California's Swimming Pool Safety Act through FMC 14.04.150 and 14.04.160, requiring every new or remodeled single-family pool or spa to have a 60-inch isolation enclosure (mandatory) PLUS at least one additional drowning-prevention feature - a stricter standard than the state default, which only requires any two of seven features.

(a) Except as provided in Section 115925, whenever a building permit is issued for the construction of a new swimming pool or spa, or any building permit is issued for remodeling of an existing pool or spa, at a private single-family home, it shall be equipped with at least two of the following seven drowning prevention safety features: (1) An enclosure that meets the requirements of Section 115923 and isolates the swimming pool or spa from the private single-family home. (2) Removable mesh fencing that meets the American Society for Testing and Materials (ASTM) International Specifications F2286 standards in conjunction with a gate that is self-closing and self-latching and can accommodate a key lockable device. (3) An approved safety pool cover, as defined in subdivision (d) of Section 115921. (4) Exit alarms on the private single-family home's doors that provide direct access to the swimming pool or spa. The exit alarm may cause either an alarm noise or a verbal warning, such as a repeating notification that 'the door to the pool is open.' (5) A self-closing, self-latching device with a release mechanism placed no lower than 54 inches above the floor on the private single-family home's doors providing direct access to the swimming pool or spa. (6) An alarm that, when placed in a swimming pool or spa, will sound upon detection of accidental or unauthorized entrance into the water. (7) Other means of protection, if the degree of protection afforded is equal to or greater than that afforded by any of the features set forth above and has been independently verified by an approved testing laboratory.

Source: California Building Code Section 3109 — Swimming Pool SafetyView official code

Full Breakdown

California's Swimming Pool Safety Act (Health and Safety Code sections 115920-115929) sets statewide minimum barrier requirements for residential pools and spas. 150 amends HSC 115922(a) so that, instead of allowing any two of the seven drowning-prevention features, the city requires Item #1 (a code-compliant isolation enclosure) PLUS at least one additional feature from the remaining list (removable mesh fencing meeting ASTM F2286, an ASTM F1346-23 safety cover, exit alarms on the home's doors, self-closing/self-latching door devices with a release at least 54 inches high, a water-detection alarm in the pool, or other equivalent independently-verified protection).

160 further amends HSC 115923 to require, among other things, that any access gate be self-closing with a self-latching device placed no lower than 60 inches above the ground, that no opening allow passage of a 4-inch sphere, and that the barrier maintain a minimum 3-foot-wide walking path between the barrier and the water. Walls of the residence or accessory structures used to complete the isolation enclosure must have door openings protected by an exit alarm or a self-closing/self-latching device, and that door protection cannot also be counted as the second drowning-prevention feature.

The state baseline still applies: minimum 60-inch barrier height, no more than 2 inches of clearance under the bottom, climb-resistant exterior, and a gate that opens away from the pool.

Violations & Fines

Construction or remodel work that does not meet the FMC 14.04.150 enclosure-plus-one-feature standard cannot pass Fullerton Building & Safety final inspection. Code Enforcement (714-738-6553) can cite owners under Title 14, and an unenclosed pool is independently a public nuisance under FMC 6.01.030, subjecting the property to abatement and administrative citations. In a drowning incident, noncompliance creates significant civil liability under California negligence-per-se principles.

Frequently Asked Questions

Does Fullerton follow California's two-of-seven pool safety rule?
No - Fullerton is stricter. FMC 14.04.150 amends HSC 115922(a) so an isolation enclosure meeting HSC 115923 is mandatory, and you must add at least one additional drowning-prevention feature. The state default lets owners pick any two; Fullerton effectively requires the fence plus a second.
Can I use my house wall as part of the pool fence?
Yes, but any door openings in walls used to complete the isolation enclosure must have either an exit alarm or a self-closing, self-latching device, and FMC 14.04.150 specifies that this door protection cannot also be counted as your second drowning-prevention feature.
What about spas and hot tubs?
In-ground and above-ground spas more than 18 inches deep are 'swimming pools' under HSC 115921 and subject to FMC 14.04.150. Hot tubs and spas with a locking ASTM F1346-compliant safety cover are exempt under HSC 115925.

Sources & Official References

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