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Somerville, MA Animal Ordinances: Exotic Pets (2026)

Heavy Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified April 2026

Key Facts

Main authority
321 CMR 9.01 (state)
Statutory basis
MGL c.131 s.23
Permitting agency
MassWildlife
Common pets allowed
Dogs, cats, small exotics
Typical fine
From 500 dollars

Summary

Exotic pets are governed primarily by Massachusetts state law, which bans most wild and dangerous species; Somerville enforces the state list through Animal Control and Board of Health.

9.01: Exemption List Pursuant to the authority granted in M.G.L. c. 131, § 23, herewith is established a list of species which are exempt from the licensing provisions of M.G.L. c. 131, § 23. This list includes wild (i.e., non-domesticated) vertebrate animals which may be imported, sold or possessed without a permit. [...]

(1) Purpose. The purpose of 321 CMR 9.01 is to list those species which are exempt from the licensing provisions of M.G.L. c. 131, § 23, and which may be imported, possessed, maintained, propagated, bought, sold, exchanged or offered for sale without a license or permit from the Division. Species not listed, or which are expressly listed as "require(s) a permit", are not exempt from the provisions of M.G.L. c. 131, § 23. [...]

(3) Categorical Non-exemptions: No species in any of the following categories may be exempted:

(a) Threatened or endangered species listed pursuant to the U.S. Endangered Species Act of 1973, as amended;

(b) Species listed in the Red Book(-s) of the International Union for the Conservation of Nature;

(c) Species appearing on the Massachusetts list of endangered, threatened, and special concern species at 321 CMR 10.90. [...]

(6) Liberation. No person shall liberate or cause to be liberated any exempt animal, except in accordance with a liberation permit issued pursuant to 321 CMR 2.15.

Full Breakdown

Exotic pet ownership in Somerville is controlled mainly by Massachusetts state law through 321 CMR 9.01 and MGL Chapter 131 Section 23, which together prohibit possession of wild mammals and reptiles on the state's exotic and dangerous list absent a MassWildlife permit. Prohibited species include most non-domesticated cats (lions, tigers, servals, bobcats), wolves and wolf-hybrids, non-human primates, bears, alligators and crocodiles, venomous snakes, and large constrictors. Domestic dogs, cats, rabbits, ferrets, guinea pigs, hamsters, gerbils, most pet birds, common aquarium fish, small non-venomous reptiles (such as corn snakes, ball pythons, leopard geckos), and captive-bred small parrots are generally allowed. Somerville Animal Control enforces violations alongside MassWildlife officers, and the Board of Health may take action for public health risks. Violations can lead to animal seizure and fines starting at 500 dollars under state law.

Frequently Asked Questions

Can I own a ferret in Somerville?
Yes. Ferrets are legal domestic pets in Massachusetts, unlike in California or New York City.
Are sugar gliders or hedgehogs allowed?
Sugar gliders and hedgehogs are restricted in Massachusetts; most species require state permits that are rarely issued to hobbyists.

Sources & Official References

Other rules in Somerville

All Somerville rules

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