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

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

Key Facts

Shelter adoption rule
No unaltered dog or cat adopted out
New-owner window
30 business days to spay/neuter
Deposit
Refundable deposit set by Board resolution
Second impound
Mandatory spay/neuter before release
Kennel dogs
Noncommercial kennel dogs must be altered

Summary

Mendocino County will not place a dog or cat up for adoption from the County shelter unless it has been spayed or neutered, under Section 10.24.090(A). New owners may take an intact animal home only after signing an agreement and posting a deposit to have it altered within thirty business days, and a second impound of an unaltered animal triggers a mandatory spay or neuter before release.

These county ordinances apply to unincorporated areas of Mendocino County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(A)Except as otherwise provided in this Chapter, the County shall not place for adoption any dog or cat that has not been spayed or neutered.(B)The County may transfer to a new owner a dog or cat that has not been spayed or neutered under the following circumstances:(1)The new owner signs a written agreement acknowledging the dog or cat is not spayed or neutered and agrees to be responsible for ensuring the dog or cat will be spayed or neutered within thirty (30) business days after the agreement is signed.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 75).

Full Breakdown

090(A) of the County Code bars Animal Care Services from placing any dog or cat up for adoption unless it has already been spayed or neutered. 090(B) if the adopter signs a written agreement to have the animal altered within thirty business days of signing, extendable up to eight months of age for animals too young for surgery, and pays a refundable deposit set by Board of Supervisors resolution within the limits of California Food and Agriculture Code Section 30521. 090(C). 020(A)(7) separately requires that every dog covered by a noncommercial kennel license be spayed or neutered, unless a veterinarian certifies the surgery would be unsafe, exempting working animals.

080(D), once a dog or cat is impounded a second time while unaltered, Animal Care Services may not waive the impound or penalty fees and must require the animal be spayed or neutered before release, with the owner paying both the impound fee and the spay/neuter cost into the dedicated trust account.

Violations & Fines

Redeeming an unaltered dog or cat from a second or later impoundment without paying for the required spay or neuter under Section 10.24.080(D) blocks the animal's release; Animal Care Services cannot waive that fee once the second impound occurs. An adopter who fails to have a newly adopted animal altered within the thirty business day window, or the extended period allowed for young animals, forfeits the spay/neuter deposit under Section 10.24.090(C)(1).

Frequently Asked Questions

Will Mendocino County's shelter adopt out an unaltered dog or cat?
No, not directly. Section 10.24.090(A) bars placing any dog or cat for adoption unless it is already spayed or neutered. The County can still transfer an intact animal if the new owner signs an agreement and pays a deposit to have the surgery done within thirty business days, per Section 10.24.090(B).
What happens if my pet is impounded a second time and isn't fixed?
Section 10.24.080(D) requires Animal Care Services to have the animal spayed or neutered before release once it has been impounded a second time unaltered, and the fee waiver available for a first impound no longer applies. You pay both the impound fee and the spay/neuter cost before you can take the animal home.
Is spay/neuter mandatory for dogs kept in a home kennel?
Yes, if the kennel is licensed as a noncommercial kennel. Section 10.12.020(A)(7) requires every dog covered by that license to be spayed or neutered unless a veterinarian certifies it would be unsafe, with an exception for working dogs used for herding or livestock protection.

Sources & Official References

Other rules in Mendocino County

All Mendocino County rules

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

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