Exotic Pets Legal in Massachusetts: What You Can Own, Permit, or Never Keep
May 5, 2026
Massachusetts has a reputation for strict rules, and its exotic pet regulations are no exception. Rules about pets are particularly stringent in the Bay State — MassWildlife itself has described the state’s regulations regarding the possession of wildlife as being among the strictest in the country. If you’re thinking about adding an unusual animal to your household, understanding exactly where the legal lines fall could save you from serious consequences.
The state’s approach is fundamentally different from more permissive states. Rather than publishing a long list of banned animals, Massachusetts regulators take the position that its regulations are so restrictive that they publish only what you may possess, rather than what you may not. That single distinction shapes everything about how you need to research exotic pet ownership here.
This guide walks you through how Massachusetts regulates exotic animals, which species you can keep freely, which require a permit, which are outright banned, and how local rules can add another layer of complexity on top of state law.
How Massachusetts Regulates Exotic Pet Ownership
The primary legal authority is M.G.L.A. 131 § 23, which bans private possession of exotic pets and requires licenses for those who deal in and propagate wild species. The Massachusetts Director of the Division of Fisheries and Wildlife also issues a list of exempted species for which no permit is needed. That exemption list — codified at 321 CMR 9.01 — is the document every prospective exotic pet owner needs to consult first.
In Massachusetts, the private possession of certain wild and exotic animals is prohibited unless a person obtains a license from the Massachusetts Division of Fisheries and Wildlife (MassWildlife), which is only granted for certain scientific, educational, commercial, or other specific reasons. You will not be issued a permit for keeping a wild animal as a pet. This is a critical distinction: even permit pathways are not designed for hobbyists or pet enthusiasts.
MassWildlife has established lists of species exempted from the licensing requirements, and those species must meet four criteria: accidental release would not harm the state’s ecology; the animal — whether in captivity or escaped — poses no substantial danger to humans through injury or disease; its care is no more demanding than that of common domestic animals; and trade in the species does not significantly affect wild populations.
Important Note: Being on the exemption list does not override all other laws. Listing on the exemption list does not affect other licensing requirements which may be applicable under federal, state, or local laws, including special endangered species and export restrictions of other states.
No species in any of the following categories may ever be exempted: threatened or endangered species listed pursuant to the U.S. Endangered Species Act of 1973, or species listed in the Red Book of the International Union for the Conservation of Nature. Additionally, Massachusetts requires a permit to possess any species listed in any rarity category of the IUCN Red List of Threatened Species, any category of federal endangered species law, or the Massachusetts List of Endangered, Threatened, and Special Concern species.
For a broader look at how Massachusetts compares to other states, see this overview of United States laws on exotic pets.
Exotic Pets You Can Own Without a Permit in Massachusetts
Per the Code of Massachusetts Regulations (321 CMR 9.01), you can possess, propagate, maintain, import, buy, sell, and dispose of the animals and animal groups listed on the exemption page without a MassWildlife permit or license. These exempted animals include many species of aquarium trade fish, many species of amphibians and reptiles, and certain birds and mammals — for example, certain boas and pythons, snapping turtles, toucans, hedgehogs, and chinchillas.
Here is a breakdown of the key permit-free categories:
Small Mammals
The exempt small mammal list includes the four-toed (African pygmy) hedgehog, chinchilla (from captive stock), deer mouse and white-footed mouse, degu, Egyptian spiny mouse, house mouse, jerboas, Norway rat, paca, southern flying squirrel, striped (Chinese or Siberian dwarf) hamster, and sugar glider. Note: the golden hamster may be kept without a permit under 321 CMR 9.02.
Domestic ferrets are also legal, but with a specific condition: domestic ferrets must be surgically neutered or spayed and rendered incapable of breeding under M.G.L. Ch. 131 S. 77. If you’re interested in keeping mice as exotic pets, this guide to caring for and keeping mice as pets covers their husbandry needs in detail.
Reptiles (Permit-Free)
All species of turtles may be kept without a permit, up to a limit of 100 turtles and/or eggs of each species, with certain exceptions. On the snake side, all venomous snakes require a permit, but the following snakes may be kept without one: all species of boas and pythons (family Boidae), except those categorically non-exempt and except the African Rock Python, Reticulated Python, and all species of anaconda, which require a permit.
Many popular colubrid species are also permit-free, including kingsnakes, milk snakes, garter snakes, corn snakes, and North American ratsnakes (with one exception noted below). For lizards, the Gila Monster and Beaded Lizard require a permit. Many other lizard families — including skinks, chameleons, and certain monitors — are exempt, though the regulations on lizards are detailed enough that you should consult 321 CMR 9.01 directly for species-level confirmation.
Birds
Parrots are among the most popular permit-free birds in Massachusetts. The animals added to the license-exemption list include boas and pythons, skinks, parrots, hedgehogs, chinchillas, and flying squirrels, among others. Toucans are also on the exempt list. As with all categories, birds listed as threatened or endangered under federal or state law are never exempt regardless of species.
Fish and Amphibians
All aquarium trade fish may be kept without a permit except species categorically non-exempt pursuant to 321 CMR 9.01(3). All amphibians may be kept without a permit except species categorically non-exempt under the same section.
Pro Tip: Even permit-free animals must be kept responsibly. Notwithstanding a species being exempt from licensing provisions, such species shall be kept in a manner appropriate for their health and safety, including being secured from escape.
Exotic Pets That Require a Permit in Massachusetts
Some animals fall into a middle category: not outright banned, but not freely available either. Non-exempt animals may not be imported, possessed, maintained, propagated, bought, sold, exchanged, or offered for sale or exchange except by a person holding a current and valid license or permit. In practice, these permits are nearly impossible for private pet owners to obtain.
Permits in this category are issued only for certain scientific, educational, commercial, or other specific reasons. You must be able to show that you are actively engaged in the activity for which you are applying. You will not be issued a permit for keeping a wild animal as a pet.
The following animals fall into the permit-required category under 321 CMR 9.01:
| Animal / Group | Permit Requirement Notes |
|---|---|
| All venomous snakes | Permit always required regardless of species |
| African Rock Python, Reticulated Python, Anacondas | Permit required; other boas/pythons are exempt |
| Gila Monster and Beaded Lizard | Permit always required |
| Black Rat Snake (wild-type) | Permit required; albinistic/leucistic individuals are exempt |
| Argentina/Chaco Tortoise, Gopher Tortoises | Permit always required |
| Mink | Must be propagated in captivity for 2+ generations |
| Savannah Cat (F1–F3 generations) | Only F4+ generations considered domestic |
| IUCN Red List / ESA-listed species | Permit required; private pet permits essentially never granted |
Regarding Savannah cats specifically, certain recognized breeds of show or pet cats which are known to be or reputed to be of hybrid origin are considered domestic and may be lawfully possessed. The Savannah cat is considered a domestic breed only if it can be documented to be four generations (F4) past the original mating with an African Serval.
Wolf-dog hybrids are an important case to understand. Wolf-dog hybrids or other hybrids between domestic dogs and any wild canine species, or any feline animal which is a hybrid between a domestic cat and any wild feline species, are not domestic animals. You cannot maintain, propagate, import, buy, sell, or otherwise possess hybrids in Massachusetts under M.G.L. Ch. 131 S. 77A.
Common Mistake: Assuming that because an animal is sold legally in another state, it is legal to bring into Massachusetts. “Many people assume that any animal they can purchase in another state or over the Internet is legal to possess in Massachusetts — this is simply not true,” according to MassWildlife. Always verify exemption status before purchasing or transporting an animal into the state.
If you’re curious how permit requirements in Massachusetts compare to neighboring states, see what exotic pets are legal in Vermont or explore the rules for exotic pets legal in New York.
Exotic Pets That Are Banned in Massachusetts
Massachusetts has strict laws that limit the types of animals that can be kept as pets. These laws protect people and animals from harm. The state’s default position is prohibition: if an animal is not on the exemption list, it is effectively banned for private ownership. You cannot have in your possession any mammal not listed as legal or domestic.
The state has banned certain exotic animals from being owned as pets, such as primates, wolves, bears, and large cats. Here is a summary of the most significant banned categories:
- All primates — monkeys, apes, and related species are prohibited for private ownership
- Big cats — lions, tigers, leopards, cougars, cheetahs, and African servals
- Bears — all bear species are prohibited
- Wolves and wolf hybrids — including wolf-dog crosses
- Foxes — not included on the exempt mammal list
- Raccoons — prohibited as pets despite being native wildlife
- All crocodilians — alligators, caimans, crocodiles, and gharials
- Red-eared slider turtles — specifically removed from the exempt list due to invasive species concerns
The crocodilian ban is absolute: you cannot have any crocodilian species in your possession in Massachusetts. The red-eared slider situation illustrates why these bans exist: people are no longer permitted to have red-eared sliders as pets because so many were released into the wild that the red-eared slider has become an established invasive species in several areas of the state, now competing with native turtles — including those listed as endangered, threatened, or species of special concern — for food, habitat, and other resources.
African servals are wild animals that are not legally allowed to be kept as pets in Massachusetts, though they can be kept by zoos. The same principle applies to most large exotic cats — institutional settings with proper permits and facilities can hold them; private individuals cannot.
Key Insight: Only museums, nature centers, or educational institutions are granted permits for non-exempt species. If you are a private individual, assume that any animal not explicitly on the exemption list is unavailable to you legally.
The banned list in Massachusetts is notably broader than in many other states. For comparison, you can explore what exotic pets are legal in Texas, exotic pets are legal in Florida, or what’s permitted for exotic pets in Nevada — states that generally allow a wider range of species.
County and Local Rules That May Override Massachusetts Law
State law sets the floor, but local governments in Massachusetts can add restrictions that go beyond what MassWildlife requires. This means an animal that is legal under state law may still be prohibited where you live.
In some instances, you may need to comply with local or state laws regarding dog licenses under M.G.L. Ch. 140 S. 137, municipal agriculture or zoning laws, or with requirements of the Massachusetts Department of Food and Agriculture pertaining to companion pets, livestock, and farm animals.
Local boards of health and animal control officers are the primary enforcers of municipal animal ordinances. Animal control law varies town to town — you should contact your local Board of Health or find your town’s rules through Mass. city and town ordinances and bylaws. A practical example of local layering: the Town of Weymouth limits residents to no more than three cats or ferrets — not including kittens under 10 weeks old — unless the person holds a valid pet shop license from the Massachusetts Division of Animal Health or is a registered animal shelter.
Zoning classifications also matter. Agricultural zones, residential zones, and commercial zones each carry different rules about what animals can be housed on a property and in what numbers. If you live in a denser urban area like Boston, Cambridge, or Worcester, city ordinances may be significantly more restrictive than the surrounding suburbs or rural towns.
Rental housing adds yet another layer. Common landlord restrictions involve banning exotic animals like reptiles or ferrets, and landlords must comply with state laws and local ordinances regarding allowed pets. Even if your animal is state-legal and town-legal, your lease agreement may prohibit it — and violating that lease can result in eviction proceedings.
Pro Tip: Before purchasing any exotic animal, verify compliance at three levels in this order: federal law (especially for CITES-listed species), Massachusetts state law (321 CMR 9.01 and M.G.L. c. 131 § 23), and then your specific city or town ordinances. Missing any one level can result in fines or forced surrender of the animal.
States with more permissive local structures — like South Dakota or Montana — offer useful contrasts to understand how much local authority can vary across the country.
Where to Verify Current Rules Before You Buy in Massachusetts
Given how specific — and how consequential — Massachusetts’s exotic pet rules are, verification before purchase is not optional. The Mass.gov wildlife-as-pets page is provided for informational purposes and is intended as a general resource, but the species lists and regulatory information may not be all-inclusive and are subject to change. Wildlife laws and regulations may be updated periodically, and additional requirements may apply. Individuals are responsible for complying with all current state and federal laws and regulations.
Use the following resources as your verification checklist:
- MassWildlife’s official exemption list — The authoritative source is 321 CMR 9.00 on Mass.gov. This is the regulation itself, not a summary, and it is updated when rules change.
- MassWildlife’s “Wildlife as Pets” guide — The Mass.gov wildlife-as-pets page provides plain-language summaries of the exemption list organized by animal group.
- Massachusetts law about animals (Mass.gov) — The Massachusetts law about animals page links to the full statutory and regulatory framework, including M.G.L. c. 131 § 23 and related regulations.
- MSPCA-Angell’s wild and exotic animals resource — The MSPCA wild animals as pets page provides a well-organized overview of what is and is not permitted, with context on why certain animals are restricted.
- Animal Legal and Historical Center — Michigan State University’s Animal Law database hosts the full text of 321 CMR 9.01 with legal citations, useful for confirming specific species-level rules.
- Your local Board of Health or Animal Control Officer — For town-specific ordinances, contact your municipality directly. Rules vary significantly between communities.
- Massachusetts Department of Agricultural Resources (MDAR) — For questions about livestock, farm animals, and import requirements, MDAR’s animal health division oversees companion animal and agricultural regulations that can overlap with exotic pet ownership.
MassWildlife recommends doing business with established and reputable pet shops rather than surfing the Internet or scanning classifieds, where sellers are not necessarily concerned with or aware of the laws that might affect potential buyers. Reputable local pet shops that specialize in exotic animals are often well-versed in state law and can confirm what they sell is legal — store owners keep up with the laws and know their livelihood depends on doing business by the book.
If you are considering an animal that might be borderline, contact MassWildlife directly at Mass.Wildlife@mass.gov before you purchase. Getting written confirmation protects you if questions arise later. You can also explore how other nearby states handle these questions — for instance, what exotic pets are legal in New Jersey or what’s permitted for exotic pets in Ohio — to understand the regional landscape and make a fully informed decision about where and what to keep.
Massachusetts’s framework is restrictive by design, but it is also transparent. The exemption list tells you exactly what is permitted. If an animal is not on it, do not assume it is allowed — assume it is not, and verify before you commit.