Microchipping: Los Angeles vs San Francisco
How do microchipping rules compare between Los Angeles, CA and San Francisco, CA?
San Francisco has fewer restrictions than Los Angeles.
Los Angeles, CA
Los Angeles County
LAMC §53.15.3 requires every dog and cat over four months old in Los Angeles to be implanted with a registered microchip. LA Animal Services microchips all adopted, redeemed, and licensed animals before release, and California state law also requires shelter chips before transfer.
View full Los Angeles rules →San Francisco, CA
San Francisco County
San Francisco Health Code Article 1 requires all dogs and cats impounded by Animal Care and Control to be microchipped before release, and licensing rules strongly encourage chipping for all pets.
View full San Francisco rules →Key Facts Comparison
| Fact | Los Angeles | San Francisco |
|---|---|---|
| Code section | LAMC §53.15.3 | SF Health Code 41 |
| Age threshold | Four months old | - |
| Implants at shelter | Yes, before release | - |
| Update registration | Whenever owner data changes | - |
| State backup | CA Food & Ag Code §31108 | - |
| Required when | - | Impound or adoption |
| Database | - | National registry required |
| Subsidized clinics | - | ACC and SF SPCA |
Highlighted rows indicate differences between cities.
Los Angeles FAQ
Does my pet have to be chipped if I never adopted from a shelter?
Yes. LAMC §53.15.3 applies to every dog and cat over four months living in Los Angeles, regardless of where they came from. Most veterinarians and Animal Services clinics implant chips inexpensively.
What happens if my chip information is out of date?
Animal Services cannot reunite you with a lost pet. Update your chip registry immediately after moving, changing phone numbers, or rehoming the animal to avoid impound fees and possible citations.
San Francisco FAQ
Is microchipping mandatory for all SF pets?
Mandatory only for impounded and adopted pets, but strongly recommended for all. Pet licensing and microchipping are linked through SF Animal Care and Control's record system.
Where can I get my pet chipped cheaply?
SF Animal Care and Control and the SF SPCA host periodic low-cost microchipping clinics. Most veterinary offices also provide chipping for around 25 to 50 dollars per pet.
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