Costa Mesa vs Santa Ana
How do microchipping rules compare between Costa Mesa, CA and Santa Ana, CA?
Costa Mesa and Santa Ana have similar restriction levels.
Costa Mesa, CA
Orange County
Orange County requires dogs four months and older within OC Animal Care jurisdiction to be microchipped before or at the time of license issuance, ensuring lost pets can be returned quickly to owners.
View full Costa Mesa rules →Santa Ana, CA
Orange County
California Food and Agricultural Code section 31108.3 requires shelters and rescues to microchip dogs and cats before transfer to a new owner. OC Animal Care implements this for Santa Ana adoptions and provides low-cost chipping clinics for owned pets.
View full Santa Ana rules →Key Facts Comparison
| Fact | Costa Mesa | Santa Ana |
|---|---|---|
| Age threshold | Four months and older | - |
| Scope | OC Animal Care jurisdictions | - |
| Tied to license | Required at issuance | - |
| Update required | When contact info changes | - |
| State law | - | Food and Ag Code 31108.3 |
| Adoption requirement | - | Pre-transfer microchip |
| Clinic cost | - | Ten to twenty-five dollars |
| Registration | - | Owner must keep current |
Highlighted rows indicate differences between cities.
Costa Mesa FAQ
How do I update my pet's microchip information?
Contact the registry your chip is enrolled with such as 24PetWatch, AKC Reunite, or HomeAgain, and update OC Animal Care license records online.
Is microchipping required for cats?
OC does not mandate cat microchipping countywide, but it is strongly recommended and offered free or low cost at OC Animal Care clinics.
Santa Ana FAQ
Is microchipping required for owned pets?
California does not require chipping for already-owned pets, only for shelter or rescue adoptions. However, OC Animal Care strongly recommends it to ensure a quick return home.
How do I update my chip registration?
Log into the registry printed on your adoption paperwork, often AKC Reunite or 24PetWatch, and update your phone, address, and email. Updates are typically free.
Compare other topics
See how Costa Mesa and Santa Ana compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool