Can You Own a Boa Constrictor in Colorado? What CPW and Local Law Require
September 21, 2026
Can you own a boa constrictor in Colorado without breaking any laws? For most residents, the answer is yes, but that “yes” comes with layers you shouldn’t skip over. Federal statutes, Colorado Parks and Wildlife (CPW) regulations, the Pet Animal Care and Facilities Act (PACFA), and local city or county ordinances all touch snake ownership differently, and they don’t always agree with each other.
Before you bring home a boa, it helps to know exactly which rules apply to you and which ones only apply to breeders, dealers, or specific counties. This guide walks through each layer so you can keep your pet legally and avoid an unpleasant surprise from animal control.
Is It Legal to Own a Boa Constrictor in Colorado
Boa constrictors (Boa constrictor) are among the most commonly kept large snakes in the United States, and Colorado does not single them out as a banned species. According to FindLaw’s summary of Colorado exotic animal law, many types of birds and reptiles, including monitor lizards, nonvenomous snakes, toucans, and ostriches, are allowed in the state. Since a boa constrictor is a nonvenomous snake, it generally falls into that permitted category at the state level.
That said, “legal” at the state level is not the same as “legal everywhere in Colorado.” In general, it is illegal to own wildlife in Colorado, but that rule targets native species pulled from the wild, not captive-bred exotic pets like boas that are already established in the pet trade. Colorado sorts animals into domestic, unregulated, regulated, and prohibited categories, and where a boa lands in that system determines whether you need a CPW license at all.
If you already keep other reptiles or you’re weighing a boa against another boa constrictor species profile, it’s worth comparing care needs before you commit, since these snakes can grow to roughly 13 feet in length over their lifetime, according to reporting on the federal constrictor rulemaking.
Pro Tip: Before buying a boa, email Colorado Parks and Wildlife directly to confirm its current classification. CPW reviews species-specific questions when residents submit the common and scientific name in writing.
Federal Restrictions on Boa Constrictors
Federal law plays a smaller role here than most people assume. The Lacey Act allows the U.S. Fish and Wildlife Service (FWS) to designate certain non-native animals as “injurious species,” which restricts how they cross state lines. Injurious species cannot be imported or transported over state lines without FWS-issued permits, and violating that rule is a federal offense regardless of what your home state allows.
Boa constrictors came close to that list twice and were passed over both times. In 2012, FWS listed the Burmese python, yellow anaconda, northern African python, and southern African python as injurious. In 2015, it added the reticulated python, DeSchauensee’s anaconda, green anaconda, and Beni anaconda to that list. The boa constrictor was reviewed alongside these species both times but never made the final cut.
Why did boas get a pass? Federal analysts explained that the regulatory prohibitions of the Lacey Act are less effective when a species, such as the boa constrictor, is widely held in captivity in the United States in high numbers, both in the number of animals and the number of people owning them. In short, boas were already too common in American households and breeding programs for an import ban to meaningfully reduce the species’ presence.
| Species | Injurious Species Status (Lacey Act) | Interstate Transport Restricted? |
|---|---|---|
| Boa constrictor | Not listed | No |
| Burmese python | Listed (2012) | Yes |
| Reticulated python | Listed (2015) | Yes |
| Green anaconda | Listed (2015) | Yes |
| Yellow anaconda | Listed (2012) | Yes |
Instead of a federal ban, FWS is currently allowing the pet industry to coordinate with states and FWS to voluntarily address prevention of boa constrictor release as an alternative to Lacey Act restriction. If you’re relocating to Colorado with a boa already in hand or ordering one from an out-of-state breeder, check the pet import laws in Colorado before you cross the border, since import rules and federal transport rules aren’t identical.
Colorado’s Laws on Owning a Boa Constrictor
Colorado’s wildlife code splits animals into distinct tiers, and the tier your snake falls into decides whether CPW gets involved at all. The state’s own guidance is direct on this point: you do not need a license from CPW to own any of the animals on the domestic list or unregulated species list. Boa constrictors, as long-established exotic pets rather than wild-caught native reptiles, typically fall outside the regulated and prohibited tiers that require a wildlife license.
Native reptiles get treated very differently. Colorado’s own regulations note that Chapter 10 provides that any person can possess up to four total from a list of sixteen common native herptile species for personal use, and even that limited allowance comes with restrictions on selling, trading, or releasing the animals. This distinction matters because it shows CPW’s licensing framework is built around protecting Colorado’s native wildlife populations, not around policing captive-bred exotic pets like boas.
That framework got a significant update recently. Colorado’s herpetofauna rules, formally approved by the Parks and Wildlife Commission in March 2026, tightened protections for native species. Under the revised Chapter W-7, Plains and Eastern hog-nosed snakes and ornate box turtles were removed from the list of native Colorado species allowed for private use and collection to protect their declining populations, while tiger salamanders were added to the list to allow for limited take. If you’re curious how these updated rules affect other native herps, the guide to types of salamanders in Colorado covers the species most affected.
Important Note: These 2026 updates apply to native Colorado wildlife, not to non-native pet-trade snakes like boa constrictors. Don’t confuse tighter native-species rules with new restrictions on captive-bred exotics — they’re governed by separate chapters of the regulations.
The regulatory split makes sense once you consider why Colorado protects native wildlife so aggressively in the first place. Species already under pressure, as covered in the piece on endangered animals in Colorado, need tighter take-and-possession limits than a captive-bred boa that was never part of the state’s native ecosystem.
Permits and Requirements for Boa Constrictor Ownership in Colorado
For a straightforward pet owner keeping one or two boas at home, Colorado generally does not require an individual CPW wildlife license, since the species sits outside the regulated and prohibited categories that trigger licensing. Where permitting does show up is on the commercial side of the reptile trade.
PACFA, administered through the Colorado Department of Agriculture, licenses breeders, dealers, boarding facilities, and pet shops rather than individual hobbyist owners. Enforcement of PACFA rules is not theoretical: the State of Colorado governing authorities, through PACFA via the CO Department of Agriculture, have been aggressive in inspecting and levying fines at reptile expos like the Repticon Denver show. If you plan to breed boas, sell offspring, or operate any kind of reptile-related business, PACFA licensing applies to you even though it wouldn’t apply to a private pet owner.
A short checklist can help you confirm where you stand:
- Keeping one or a few personal pet boas at home: typically no CPW wildlife license required
- Breeding or selling boas commercially: PACFA license required through the Colorado Department of Agriculture
- Operating a wildlife exhibit or educational display: a Commercial Wildlife Park License from CPW may apply, with license fees set under state statute
- Importing a boa from another state: check both federal transport rules and Colorado’s own pet import requirements first
If your situation doesn’t fit neatly into one of these categories — say, you’re running a small home-based breeding operation — reach out to CPW and the Colorado Department of Agriculture directly. Contact your city and county to see if the animal is allowed where you live as well, since state-level permission doesn’t guarantee local approval.
Local Ordinances That May Apply in Colorado
This is where boa ownership gets genuinely complicated, and where a lot of Colorado pet owners get tripped up. CPW is blunt about how the hierarchy works: no matter which agency or agencies regulate the wildlife you are interested in, the agency that has the most restrictive law is the law that applies. State-level legality is a floor, not a guarantee.
CPW even uses a hypothetical to illustrate the point: if the city of Denver prohibits the possession of wildlife for any reason, there is no agency or law that will override this local law, and there would simply be no way to own wildlife in that city unless the local laws were to change. Denver hasn’t banned pet boas outright, but the principle holds statewide — a city or county can always be stricter than the state.
Arapahoe County offers a real-world example of this layering in action. Potentially large constricting reptiles — boas and pythons larger than three feet in length — are prohibited from sale in Arapahoe County, while boas and pythons three feet and smaller may still be sold. This restriction specifically targets sales transactions within the county rather than banning possession of an already-owned adult boa, but it shows how one county’s rules can diverge sharply from the state’s general permissiveness.
| Jurisdiction Type | Boa Constrictor Rule Example | What It Means for Owners |
|---|---|---|
| State (Colorado) | Nonvenomous snakes generally allowed | No individual CPW license typically needed |
| Arapahoe County | Sale of boas/pythons over 3 feet prohibited | Affects purchases within the county |
| Denver (hypothetical per CPW) | Could ban wildlife possession entirely | Local ban would override state allowance |
Local pet regulations in Colorado are rarely uniform, and that pattern shows up well beyond reptiles. The way municipalities handle dog breed restrictions in Colorado or enforce leash laws in Colorado follows the same city-by-city variation you’ll find with exotic pet ordinances. Before you buy or transport a boa, call your city clerk’s office and your county’s animal control department directly — don’t rely solely on state guidance.
Penalties for Illegally Owning a Boa Constrictor in Colorado
Because boa constrictors are generally permitted at the state level, most violations you’d actually face involve the surrounding rules rather than the animal itself: unlicensed commercial breeding, ignoring a county’s size or sale restrictions, or keeping a snake somewhere a local ordinance specifically prohibits it.
Colorado’s wildlife possession framework draws its legal authority from several statutes, including C.R.S. 33-1-106, 33-6-109, 33-6-113, 33-6-114, and 18-9-202. These statutes give CPW and local authorities the power to cite, fine, or confiscate animals held in violation of state or local rules, though the exact penalty depends heavily on which specific rule was broken and which jurisdiction is enforcing it.
Important Note: Colorado does not publish a single fixed fine schedule for illegal exotic pet possession. Penalties vary by violation type — PACFA infractions, county ordinance violations, and state wildlife code violations are each enforced separately. Contact CPW, the Colorado Department of Agriculture, or your local animal control office for the penalty structure that applies to your specific situation.
PACFA enforcement, in particular, is not a paper tiger. As noted earlier, Colorado’s governing authorities through PACFA have been aggressive in inspecting and levying fines at reptile expos, which signals that unlicensed commercial activity involving reptiles draws real regulatory attention. Colorado applies similarly serious enforcement to protected native wildlife, as detailed in the guide to eagles in Colorado, where federal and state protections carry steep consequences for violations.
The safest approach is straightforward: confirm your boa’s legal status with CPW, check whether you need a PACFA license for any commercial activity, and verify your specific city and county ordinances before you buy, sell, or relocate with your snake. Doing that homework upfront costs far less than a citation or a confiscated pet down the road.
Colorado’s layered system rewards owners who check every level rather than assuming one clean “yes” applies everywhere. For more Colorado-specific animal law coverage, browse the Colorado animal law and wildlife tag for related guides on permits, restrictions, and species-specific rules across the state.
Disclaimer: This article provides general information about Colorado wildlife and pet ownership regulations and is not legal advice. Laws and local ordinances change, so verify current requirements with Colorado Parks and Wildlife, the Colorado Department of Agriculture, and your local government before acquiring or relocating with a boa constrictor.