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

050, in the Impoundment chapter, ties adoption directly to sterilization rather than imposing a blanket spay/neuter mandate on every pet owner in the unincorporated county. Subsection A bars the shelter from releasing any unclaimed dog or cat for adoption without the animal being sterilized, or without a written agreement guaranteeing sterilization within thirty days for an adult animal, or by a specified date in the contract for puppies and kittens. Subsection B backs that promise with a financial mechanism: for each dog or cat placed for adoption, the Animal Control Officer collects a refundable fee, set by Board of Supervisors resolution, earmarked for sterilization.

The fee is refunded only if the adopter returns a veterinarian-endorsed certificate showing the animal was sterilized within six months of the certificate's date, or if the animal and certificate are surrendered back to the shelter within fourteen calendar days. 030(H) caps the dog and cat license fee for spayed females and neutered males at no more than fifty percent of the fee charged for an intact animal, encouraging sterilization through licensing cost rather than requiring it. 030 makes cat licensing optional while dog licensing is mandatory at four months of age.

Together, these sections mean Monterey County's only enforceable sterilization requirement runs through the shelter adoption contract administered by the Animal Control Officer, backed by the refundable fee and the six-month veterinary confirmation deadline.