Moving to Colorado with Pets

Before You Cross the State Line

Colorado welcomes pets, but the Colorado Department of Agriculture (CDA) has real paperwork requirements for dogs and cats arriving from out of state — and those requirements got stricter in 2026. Get ahead of them before moving day, not after.

Certificate of Veterinary Inspection (CVI / Health Certificate)

The CDA requires a Certificate of Veterinary Inspection for dogs and cats entering Colorado. A CVI is a signed document from a licensed, USDA-accredited veterinarian confirming your pet is free of visible signs of disease and meets entry requirements. In practice, most standard CVIs are valid for 10 days from the date of exam — so schedule the appointment close to your departure date, not weeks ahead.

New World Screwworm emergency rule (June 2026): As of June 2026, the CDA adopted an Emergency Rule requiring all dogs and cats originating from or traveling through any state with an active New World Screwworm (NWS) infestation to present a CVI issued within 5 days of entry into Colorado. Check the CDA's current list of affected states before you travel — the list can change quickly as infestations spread or are contained. (Colorado Department of Agriculture — Animals, accessed August 31, 2026)

• Schedule a vet appointment no more than 5–10 days before your move date
• Confirm with your vet whether your origin state is on the NWS-affected list
• Request a printed CVI and ask your vet to email a copy to your Voocie address
• Keep the original in your car during the drive — not packed in a box
• Bring your pet's full vaccination history to the pre-move vet visit

Colorado Pet Licensing: City by City

Unlike some states, Colorado has no single statewide pet licensing system. Each city and county runs its own program — which means your deadline, your fee, and your renewal process depend entirely on where you land. Here's how the biggest Front Range cities compare:

Denver's 30-day requirement is codified in the Denver Municipal Code, Chapter 8, Article III, which governs animal licensing within city limits. Miss the window and you may face late fees or citations. Put a calendar reminder on moving day.

What Colorado Doesn't Have: Statewide Rabies Mandate

Here's something that surprises a lot of new Colorado residents: the state of Colorado does not have a statewide statute mandating rabies vaccination for dogs the way many other states do. However, don't read that as a loophole — nearly every municipality fills that gap through local ordinances. Denver, Colorado Springs, and Fort Collins all require a current, valid rabies vaccination certificate as a condition of licensing. (Refer to Denver Municipal Code Ch. 8 Art. III; Colorado Springs City Code; Fort Collins City Code for exact language.)

The practical outcome: your dog needs to be current on rabies before you apply for a license anywhere on the Front Range. Cats are typically exempt from licensing in most Colorado cities, but check your specific municipality — rules vary.

Wildlife Rabies Risk in Colorado

Colorado is classified as a high-risk state for wildlife rabies. Skunks and bats are the primary carriers, and both are common across the state — from suburban Denver backyards to mountain trails. This is a real consideration if you're moving from a lower-risk region and your pet has spent most of its life indoors or in urban environments.

Key points for new Colorado pet owners:

• Keep rabies vaccinations strictly current — this is not a state to let boosters slide
• Never handle a bat found on the ground (they can carry rabies without visible symptoms)
• If your pet has contact with a wild skunk or bat, contact a vet immediately — do not wait to see symptoms
• Report stray wildlife encounters to Colorado Parks and Wildlife

Your Colorado Move-In Records Checklist

Between securing housing, changing your address, and hauling boxes up stairs, it's easy for pet paperwork to fall through the cracks. Here's what to have organized before you arrive:

• Certificate of Veterinary Inspection (CVI) — issued within 5–10 days of entry
• Rabies certificate — required for licensing in every major CO city
• Core vaccine records — DHPP (dogs), FVRCP (cats), plus any lifestyle vaccines
• Microchip documentation — chip number and registration details
• Spay/neuter certificate — reduces licensing fees in most CO cities
• Prior vet contact info — for records transfer to your new Colorado vet
• Heartworm and flea/tick prevention records
• Any specialist records — orthopedics, cardiology, dermatology, etc.

Finding a Vet in Colorado

Colorado has a robust veterinary community, but demand often outpaces supply in popular metros — particularly Boulder, Fort Collins, and mountain communities like Breckenridge and Steamboat Springs. Don't wait until your pet needs care to find a provider. Start the search before your move:

• Ask your current vet for a referral network or colleagues in your destination city
• Check the Colorado State Veterinary Medical Association directory
• Request a full records transfer from your current vet — not just a summary
• Some mountain-area vets have multi-week new-client wait lists, so call early

When you get to your first Colorado vet appointment, you'll likely be asked for vaccination history, prior medications, and any chronic conditions. Having everything organized — and shareable — makes that first visit smooth rather than scrambled.

Altitude Considerations for Pets

If you're moving from a low-elevation region, keep in mind that Colorado's altitude (Denver sits at 5,280 feet; mountain towns can be 7,000–10,000+ feet) can affect pets, particularly in the first week or two. Brachycephalic breeds (flat-faced dogs and cats like bulldogs, pugs, and Persian cats) and pets with existing heart or respiratory conditions may need more time to acclimate. Ask your vet about altitude adjustment before you move — this is not something to figure out on arrival.

Last verified: August 31, 2026. Licensing rules, fees, and entry requirements change — always confirm current requirements with the Colorado Department of Agriculture (ag.colorado.gov/animals), your destination city's animal services office, and your licensed veterinarian before traveling. This guide is informational only and does not constitute veterinary or legal advice.