Ontario, CA Animal Ordinances: Breed Restrictions (2026)

Under California Food and Agricultural Code Section 31683, local governments in California are prohibited from enacting or enforcing breed-specific ordinances that declare a dog dangerous or vicious based solely on breed, and from banning specific breeds. Ontario therefore regulates dogs on a behavior basis rather than by breed. The city and San Bernardino County Animal Care use the potentially dangerous and vicious dog processes set out in California Food and Agricultural Code Sections 31601 through 31683 to address dogs that attack or threaten people or other animals, requiring secure enclosures, muzzling in public, and in severe cases seizure and euthanasia. California law does permit breed-specific mandatory spay, neuter, and breeding-permit requirements as a narrow exception, and cities and counties may adopt such programs. Landlords, insurers, and HOAs may still maintain private breed restrictions that are not affected by Section 31683. Residents should also confirm their homeowner insurance coverage for any specific breed before acquiring a dog.