Cats in California, United States: rules and travel
Dogs are licensed and vaccinated for rabies from 3 to 4 months, owners are strictly liable for bites, and local dog control may not be breed-specific.
Licensing and many keeping rules are set by counties and cities.
The national rules for United States apply here too. National rules
Laws change: this is general information, not legal advice. The authority linked on each line has the final word.