Fencing Requirements: Ontario vs Rialto
How do fencing requirements rules compare between Ontario, CA and Rialto, CA?
Ontario and Rialto have similar restriction levels.
Ontario, CA
San Bernardino County
Ontario pools must comply with the California Swimming Pool Safety Act at H&S Code 115920, which requires an approved barrier or combination of safety features around any residential pool or spa.
View full Ontario rules →Rialto, CA
San Bernardino County
Pools and spas in Rialto must be enclosed by a barrier meeting California Building Code Section 3109 / CRC Appendix V: at least 60 inches high, non-climbable, gaps under 4 inches, with self-closing, self-latching gates opening away from the pool. Rialto enforces these standards under RMC Title 15 (Buildings and Construction).
View full Rialto rules →Key Facts Comparison
| Fact | Ontario | Rialto |
|---|---|---|
| Minimum height | 60 inches | - |
| Features required | At least 2 of 7 | - |
| Gate | Self-closing, self-latching | - |
| Vertical gap | 4 inches max | - |
| Under-barrier gap | 2 inches max | - |
| Minimum barrier height | - | 60 inches (CBC §3109) |
| Max gap under fence | - | Less than 2 inches at grade |
| Max sphere passage | - | 4 inches through any opening |
| Gate type | - | Self-closing, self-latching, outward swing |
Highlighted rows indicate differences between cities.
Ontario FAQ
Is a standard 6-foot block wall enough for an Ontario pool?
The wall counts as one of the seven features, but the Act requires at least two. A second feature such as a door alarm or pool cover is also required.
Does my existing Ontario pool need to meet the new rules?
Existing pools are generally grandfathered, but remodel permits trigger full compliance with current H&S 115920 barrier and safety feature requirements.
Rialto FAQ
Can my house wall count as one side of the pool fence?
Yes, if doors leading to the pool have one of the SB 442 safety features (door alarm, self-closing/self-latching, or power safety cover).
Does a spa with a locking cover need a fence?
An ASTM F1346 listed safety cover can satisfy barrier requirements for a spa under CBC §3109, but a permit and inspection are still required.
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