Can You Own a Chimpanzee in Massachusetts? What State and Federal Law Say
September 9, 2026
If you’ve ever wondered whether you can own a chimpanzee in Massachusetts, the short answer is no — and the reasons go well beyond common sense about keeping a wild animal in your living room. Two separate layers of law, state and federal, both treat chimpanzees as protected wildlife rather than pets, and neither one offers an easy permit path for private individuals.
This breakdown walks through what federal law actually says about primate ownership, how Massachusetts regulates chimpanzees specifically, what permits (if any) exist, which local rules might apply on top of state law, and what penalties you could face for keeping one illegally.
Important Note: This article explains general legal information based on published state and federal statutes. It is not legal advice. If you have a specific situation involving a primate, contact MassWildlife or a licensed Massachusetts attorney directly.
Is It Legal to Own a Chimpanzee in Massachusetts
No. Private individuals cannot legally own a chimpanzee as a pet in Massachusetts. The chimpanzee, Pan troglodytes, is classified as a Great Ape, and all Great Apes are considered endangered under federal law, which triggers protection under Massachusetts’ own endangered species statute as well as its general exotic animal law.
It’s worth noting that federal protection for chimpanzees has actually gotten stronger over time, not weaker. Wildlife advocacy groups point to the ending of the split listing for chimpanzees in the Endangered Species Act as a major shift, since captive-born chimpanzees were once treated differently from wild ones under federal rules. Today, that distinction no longer shields captive chimps from endangered species protections.
Massachusetts law reinforces this rather than softening it. According to a detailed legal review of the state’s Great Ape statutes, Massachusetts does not use the language of “ownership” in the context of Great Apes, though possession is frequently treated as an indicator of ownership. In practice, that means the state doesn’t recognize a legal category of “chimpanzee owner” the way it might recognize a dog or cat owner.
What Federal Law Currently Says About Primate Ownership
At the federal level, the regulatory picture is surprisingly thin. As of 2025, aside from the ban on importing primates for the pet trade, there are no federal laws governing the sale or keeping of primates as pets. The Animal Welfare Act does provide some oversight, but primates used in research or held by dealers and exhibitors are provided protection under the Animal Welfare Act, and this does not extend to those in private homes.
That gap is exactly what’s driving a current push in Congress. Lawmakers reintroduced the Captive Primate Safety Act (H.R.3199/S.1594) in May 2025 to prohibit the private ownership and interstate or foreign commerce of nonhuman primates such as chimpanzees, gorillas, and orangutans by amending the Lacey Act. Congressman Mike Quigley, one of the bill’s sponsors, has framed it directly: “Monkeys and apes belong in the wild—not in living rooms. This bill will ban private possession of these animals.”
As of this writing, the bill has not been enacted. It remains proposed legislation moving through Congress rather than current law, which means the patchwork of state rules — including Massachusetts’ — is still doing the heavy lifting on primate regulation nationwide.
| Aspect | Federal Law | Massachusetts Law |
|---|---|---|
| Private pet ownership of chimpanzees | Not directly banned nationwide (as of 2025) | Banned in practice under exotic animal and endangered species statutes |
| Importing chimps for the pet trade | Prohibited | N/A (state defers to federal import rules) |
| Endangered species protection | All chimpanzees listed as endangered | Automatically protected because federally listed species are covered |
| Institutional exceptions | Allowed for AWA-licensed research and exhibition | Allowed via director-issued breeder’s/dealer’s licenses |
| Pending legislation | Captive Primate Safety Act (not yet law) | No comparable pending bill identified |
Massachusetts’ Laws on Owning a Chimpanzee
Massachusetts regulates exotic animals through a statute that predates most people’s awareness of the exotic pet trade entirely. Massachusetts bans private possession of exotic pets and requires licenses for those who deal and propagate wild species, under M.G.L. c.131 §23, which has been in place since 1980. Chimpanzees fall squarely into the category this law was written to cover.
On top of that general exotic animal ban, chimpanzees get a second layer of protection through the state’s endangered species framework. The Massachusetts Endangered Species Act specifically covers all species listed under the Federal Endangered Species Act of 1973 and its amendments, meaning Great Apes are protected under Massachusetts law as well. You can read more about how this framework applies to native wildlife in our guide to endangered animals in Massachusetts.
What makes Massachusetts unusual compared to many other states is its default-deny structure. Rather than publishing a list of banned species, Massachusetts regulators take the position that their regulations are so restrictive that they publish only what you may possess, rather than what you may not. That distinction matters: if a species isn’t explicitly named on the state’s exemption list, you should assume it’s restricted, not the other way around.
That exemption list is narrow and skews heavily toward small, low-risk species. It covers animals like garter snakes and certain frogs, salamanders, and hedgehogs — nothing resembling a Great Ape. If you’re curious how this plays out for reptiles specifically, our breakdowns of types of snakes in Massachusetts and green snakes in Massachusetts cover species that actually do qualify for permit-free possession under state rules — a sharp contrast to how chimpanzees are treated.
Permits and Requirements for Chimpanzee Ownership in Massachusetts
There is no permit category in Massachusetts that lets a private citizen keep a chimpanzee as a household pet. The state’s licensing structure does allow the director of the Division of Fisheries and Wildlife discretion over certain wildlife, but this discretion covers breeder’s or dealer’s licenses, and individual pet-ownership licenses are permitted for other regulated animals without the right to sell them — a structure that doesn’t extend a pet pathway to endangered Great Apes.
For comparison, Massachusetts does allow some genuinely dangerous animals into private hands under strict permitting. Permits are required for “large carnivores” and wolf-dogs grandfathered in with proper permits — a category that includes bears and wild cats. If you’re curious how the state handles other large wildlife with seasonal behavior patterns, our guide on when bears come out of hibernation in Massachusetts covers a species that, unlike chimpanzees, does have a defined (if restrictive) permit route.
In practice, the only entities that legally hold chimpanzees in Massachusetts are institutions, not individuals. That typically means:
- AZA-accredited zoos with USDA exhibitor licenses under the Animal Welfare Act
- Federally registered research facilities conducting biomedical or behavioral studies
- Accredited primate sanctuaries operating under both state propagator/dealer licensing and federal endangered species permits
None of these pathways function as a “pet permit,” and none are realistically available to someone hoping to keep a chimpanzee at home.
Pro Tip: If you’re exploring any exotic animal permit in Massachusetts, contact the Division of Fisheries and Wildlife directly before assuming a license category applies to you. Verbal assurances from a seller are not a substitute for a written state permit.
Local Laws That May Apply in Massachusetts
State law sets the floor, not the ceiling, for animal regulation in Massachusetts. Permits are required for many exotic animals, some dangerous exotics are outright banned, and local municipalities may add additional rules on top of state requirements. That means even in the unlikely event a chimpanzee were somehow permitted at the state level, a city or town could still restrict or prohibit it through local bylaws.
Massachusetts towns commonly layer rules onto pet and wildlife ownership through zoning restrictions on animal enclosures, board of health regulations, and animal control ordinances. You can see this pattern already at work in how municipalities handle more common animals — our guides to dog breed restrictions in Massachusetts and dog leash laws in Massachusetts both show how local governments add requirements beyond what the state mandates for domestic animals, and exotic wildlife tends to face even stricter local scrutiny.
Homeowners insurance is another practical hurdle rarely covered by statute directly. Most standard policies exclude coverage for injuries caused by non-domesticated animals, which means anyone attempting to house a large primate would likely need specialized liability coverage — assuming an insurer would even write the policy.
Penalties for Illegally Owning a Chimpanzee in Massachusetts
Massachusetts backs its exotic animal law with real enforcement teeth. Under the statute governing exotic pets, any fish, bird, mammal, reptile, or amphibian possessed in violation of the law or its regulations may be seized and disposed of by the director of law enforcement for the best interests of the commonwealth. In other words, an illegally kept chimpanzee could be confiscated outright, not just fined.
Beyond seizure, general penalty provisions under Massachusetts wildlife law impose meaningful fines. Violations can carry fines of not less than $200 but not more than $500, imprisonment for not more than 90 days, or both, with additional fines of $100 to $500 for each bird or mammal unlawfully held or possessed. For a single chimpanzee, that per-animal fine stacks on top of the base penalty.
Repeat violations carry a much steeper cost. A 2022 update to state law created an enhanced penalty tier: a third or subsequent violation within a 10-year period is punishable by a fine of not less than $1,000 but not more than $15,000, imprisonment for not more than 5 years, and this enhanced penalty applies to violations involving three or more animals. That provision was clearly written with repeat exotic-animal offenders in mind.
Real-world enforcement in Massachusetts already shows how seriously the state treats illegally kept primates, even smaller ones. When a Lowell resident was found with a pet marmoset purchased legally in Florida, Massachusetts environmental police seized the animal because the state bans owning exotic animals, a law that even extends to some zoos. A chimpanzee — far larger, far more dangerous, and far more legally protected than a marmoset — would draw at least as serious a response, and likely a criminal referral rather than a simple confiscation.
If a chimpanzee were transported across state lines in violation of federal wildlife trafficking rules, additional federal penalties under the Lacey Act and the Endangered Species Act could apply on top of anything Massachusetts imposes. For context on how the state treats wildlife possession more broadly, our articles on roadkill laws in Massachusetts and deer hunting season in Massachusetts both illustrate how tightly MassWildlife controls possession of regulated species, even ones far less protected than a Great Ape.
Common Mistake: Assuming a chimpanzee purchased legally in another state can be brought into Massachusetts without consequence. Massachusetts enforces its own possession laws regardless of where or how legally the animal was originally acquired.
Between state seizure authority, escalating fines, potential imprisonment, and overlapping federal exposure, keeping a chimpanzee illegally in Massachusetts carries far more risk than most people expect going in. If you’re researching primate ownership more broadly, our related guide on whether you can own a monkey in Massachusetts and our overview of venomous animals in Massachusetts both reinforce the same pattern: the state consistently favors public safety and conservation over private exotic pet ownership. Anyone genuinely interested in working with primates is better served contacting an accredited sanctuary, zoo, or research institution about volunteer or career paths rather than attempting private ownership.