Maricopa County has no mandatory spay or neuter ordinance and Arizona has no statewide requirement. Sterilization is voluntary, but the county and partner clinics offer subsidized surgeries, discounted altered-dog license fees, and free vouchers through the Spay Neuter Hotline of Arizona.
Neither Arizona statute nor Maricopa County code requires sterilization of owned dogs or cats. The county uses incentives instead: an altered annual dog license costs roughly twenty dollars while an unaltered license is markedly higher. Every animal adopted from MCACC is sterilized before release. The Spay Neuter Hotline of Arizona, the Arizona Humane Society, and AZCAAS run rotating low-cost clinics with vouchers for low-income residents and feral colony caretakers. Some HOAs and rental properties impose private sterilization rules. As of 2026 there is no state preemption of local mandatory ordinances, so policy could change in any Maricopa city, but the countywide default remains voluntary.
There is no county penalty for keeping an intact pet. Owners do pay higher annual license fees for unaltered dogs and may face higher impound or reclaim costs if an intact dog is picked up at large by MCACC.
Tempe, AZ
Tempe regulates industrial noise through Chapter 20 (Noise) of the City Code and the Zoning and Development Code. Industrial uses must not generate noise exc...
Tempe, AZ
Tempe addresses barking dogs under both the noise ordinance (Chapter 20) and animal control regulations. Dogs that bark persistently and disturb neighbors ca...
Tempe, AZ
Tempe requires vehicles to park on approved hard surfaces such as concrete or asphalt driveways. Parking on dirt, gravel, or landscaped areas is prohibited. ...
Tempe, AZ
Tempe generally does not require a building permit for standard residential fences up to 6 feet in height. Fences exceeding 6 feet, masonry walls, and fences...
Tempe, AZ
Tempe's Zoning and Development Code regulates fence materials in residential zones. Common permitted materials include block, stucco, wrought iron, wood, vin...
Tempe, AZ
Tempe's zoning code limits residential fence heights to 6 feet in side and rear yards and 3 feet in front yards. Corner lots may have additional visibility t...
Side-by-side rule comparisons with other cities in Maricopa County.
See how other cities in Maricopa County handle mandatory spay/neuter.
See how Tempe's mandatory spay/neuter rules stack up against other locations.
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