California Pet Travel Rules for RVers

Required Travel Documents

California does not require a Certificate of Veterinary Inspection (CVI) for pet dogs and cats entering from other U.S. states for recreational travel, but it is strongly recommended. If you are traveling with birds, livestock, or exotic pets, a USDA-accredited veterinarian must issue a CVI (also called a health certificate) within 10 days of entry.

All dogs must have proof of current rabies vaccination. California law requires dogs to be licensed, and your home-county license tag is generally accepted, but you may be asked to show vaccination records at state park check-in or campground arrival.

Keep vaccination records and your vet's contact information accessible in your RV — they are frequently requested at pet-friendly accommodations.

Vaccination Requirements

Rabies vaccination is legally required for all dogs over four months of age entering California. Most parks and private campgrounds also require proof of distemper (DHPP) vaccination, though this is not a state law.

California is largely free of major livestock disease concerns, but the state has strict agricultural inspection stations on all major entry highways (I-5, I-8, I-10, I-15, I-40, I-80, US-395). Agricultural inspectors may ask about pets and plants — have your vaccination certificates ready.

RV and Vehicle Rules

California has some of the tightest size restrictions for RVs in the country. The statewide maximum vehicle length is 40 feet for a single unit (motorhome/RV). A tow vehicle plus towed vehicle (e.g., truck towing a travel trailer) has a maximum combined length of 65 feet.

Width is limited to 102 inches (8.5 feet), and height to 14 feet on most state and federal highways. Check Caltrans' official route information for low-clearance tunnels and bridges before heading into mountain passes like Highway 1 or Tioga Road in Yosemite.

Pets must be secured while the vehicle is in motion. California law does not specify a restraint method, but an unrestrained animal that causes an accident can result in reckless driving charges. Many pet-safety advocates recommend a crash-tested harness or secured crate.

It is illegal in California to transport a dog in the open bed of a pickup truck unless the dog is cross-tied so it cannot jump or fall out. Violations can result in fines.

State Park and Campground Pet Policies

California State Parks allow pets in campgrounds and on paved roads, but pets are prohibited on most trails, beaches (with notable exceptions), and in park buildings. Dogs must be on a leash no longer than 6 feet at all times.

A handful of state beaches allow dogs: Carmel City Beach, Del Mar City Beach, and Ocean Beach in San Diego are popular examples — but these are city-managed, not state-park-managed. Always verify with the specific park before arrival.

Fees: most California State Park campgrounds charge a pet fee of $5–$10 per pet per night on top of the standard camping fee.

Reservation platforms (Reserve California) let you filter for pet-friendly sites. Not every site in a pet-friendly campground accepts pets — some premium or equestrian sites are pet-free.

Breed Restrictions and Quarantine Notes

California has no statewide breed-specific legislation (BSL). However, individual cities and counties may have BSL — notably San Francisco, which has regulations around pit bull-type dogs, and several Central Valley municipalities.

There are no domestic pet quarantine requirements for travelers entering California from other U.S. states. Hawaii-bound travelers crossing through California should be aware that Hawaii has a 5-day-or-less quarantine program requiring advance paperwork (this is a Hawaii rule, not California's).

Disclaimer: pet travel regulations change frequently. Verify requirements with the California Department of Food and Agriculture and the California State Parks website before your trip.

Frequently Asked Questions

Does California require a health certificate for pet dogs?

No CVI is required for pet dogs and cats from other U.S. states, but livestock and exotic pets do require one within 10 days of entry.

Are dogs allowed on California State Park trails?

Dogs are prohibited on most California State Park trails. They are allowed in campgrounds and on paved roads on a 6-foot leash.

What is the maximum RV length in California?

40 feet for a single motorhome; 65 feet combined for a tow vehicle plus trailer.

Are there breed restrictions in California?

No statewide breed-specific legislation, but individual cities like San Francisco have local regulations for certain dog types.