Skip to main content
CityRuleLookup

San Bernardino County, CA Animal Ordinances: Mandatory Spay/Neuter (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Mandate
Pit Bulls must be altered by 4 months
Enforcing agency
County Health Officer
Enacted
Ord. 4114, 2010
Applies to
Unincorporated county only
State authority
Health & Safety Code § 122331

Summary

San Bernardino County requires every Pit Bull over four months old to be spayed or neutered, with narrow exemptions for AKC/UKC-registered purebreds, working, and medically unfit dogs.

City-specific rules exist: Fontana, Hesperia, Ontario, Rancho Cucamonga, and San Bernardino have their own mandatory spay/neuter rules that differ from San Bernardino County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Pursuant to Health and Safety Code § 122331, no person shall own or keep a Pit Bull over the age of four months which has not been spayed or neutered, except as provided in Subdivision (b) below. For purposes of this Section, "Pit Bull" is defined as any Staffordshire Bull Terrier, American Pit Bull Terrier or American Staffordshire Terrier breed of dog, or any mixed breed of dog which contains, as an element of its breeding, any of these breeds...

Full Breakdown

County Code § 32.1501 bars owning or keeping an unaltered Pit Bull, defined as a Staffordshire Bull Terrier, American Pit Bull Terrier, American Staffordshire Terrier, or any identifiable mix of those breeds, past four months of age. Enacted under Health and Safety Code § 122331, it exempts AKC/UKC-registered purebreds, law enforcement dogs, service or assistance dogs under Food and Agriculture Code § 30850, dogs a vet confirms cannot safely be altered, and dogs at a licensed breeding kennel under § 32.0301. A companion section, § 32.1502, extends spay/neuter to any unaltered dog whose owner has already been cited for a Code or state-law violation involving that dog. Both apply only in the unincorporated county, Fontana, Ontario, and the other 22 incorporated cities enforce their own municipal codes.

Violations & Fines

Non-compliance is a Code violation; the Health Officer may order the dog altered and bill the owner for veterinary costs and staff time.

Frequently Asked Questions

Does this ban Pit Bulls in San Bernardino County?
No. It requires sterilization by four months old, not removal or a breed ban; registered purebreds and service dogs can qualify for exemptions.
Does the spay/neuter rule apply in Fontana or Ontario?
No. County Code § 32.1501 governs only the unincorporated county; incorporated cities enforce their own animal control ordinances.

Sources & Official References

Other rules in San Bernardino County

All San Bernardino County rules

California rules heatmap·Compare San Bernardino County to another location·View the California animal ordinances overview

Get notified when Mandatory Spay/Neuter in San Bernardino County, CA changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.

Mandatory Spay/Neuter in Cities Across San Bernardino County