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Animal Ordinances in Massachusetts (2026)

143 rules on the books across Massachusetts, 30 cities and counties. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

Chickens & Livestock

Combined rules for keeping chickens and other livestock such as goats, rabbits, and ducks on residential property, including lot size requirements.

Massachusetts: statewide

StatewideSome Restrictions

Massachusetts law directs every town field driver to take up horses, mules, asses, neat cattle, sheep, goats, or swine…

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Boston

Heavy Restrictions

Boston prohibits traditional livestock (cows, pigs, goats, sheep, horses) on residential lots. Only hens and bees are…

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Cambridge

Heavy Restrictions

Cambridge prohibits traditional livestock (cattle, pigs, goats, sheep, horses) in all zoning districts; only urban hens…

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Lowell

Heavy Restrictions

Lowell City Code Section 104-34 flatly prohibits keeping animals or fowl within the city limits except licensed…

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Somerville

Heavy Restrictions

Traditional livestock such as cattle, horses, goats, sheep, and pigs are not permitted on residential lots in…

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Chicopee

Significant Restrictions

In the City of Chicopee, Massachusetts, § 144-11 bans keeping swine except for immediate slaughtering, and § 144-12…

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Medford

Significant Restrictions

Keeping or raising livestock, including an animal stable or kennel, is not permitted by right in any of Medford's…

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Revere

Significant Restrictions

Revere Municipal Code Section 6.02.010 bans keeping any chicken, rooster, duck, goose or fowl in the city, with fines…

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Southborough

Significant Restrictions

In Southborough no one can keep a horse anywhere in Town except in a stable licensed by the Board of Health. Stables…

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Springfield

Significant Restrictions

Springfield bars keeping livestock animals, cattle, poultry, swine, and similar farm animals, on private property…

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Everett

Some Restrictions

In the City of Everett, Massachusetts, Section 3-32 of the Revised Ordinances says no person shall keep any live fowl…

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Haverhill

Some Restrictions

In the City of Haverhill, the Board of Health controls whether residents can keep chickens, swine, goats or other…

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Leominster

Some Restrictions

Leominster's zoning table of uses treats backyard poultry as a residential accessory use capped at ten birds. City Code…

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Lynn

Some Restrictions

Lynn allows up to six hens per lot as one of only two agricultural animals the city permits, but roosters are banned…

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Methuen

Some Restrictions

In the City of Methuen, Massachusetts, a building, structure or pen for poultry or other livestock must sit at least 50…

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New Bedford

Some Restrictions

New Bedford caps backyard poultry and animals at one head per 1,000 square feet of net lot area under the zoning…

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Plymouth County

Some Restrictions

Backyard chickens are allowed subject to each town's zoning bylaw. MGL c.40A §3 bars towns from zoning out commercial…

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Framingham

Few Restrictions

Framingham's code does not cap or license backyard chickens or livestock directly. Instead, City Code § 255-2 defines…

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Dog Leash Laws

When and where dogs must be on a leash, off-leash park rules, leash length limits, and penalties for dogs running loose.

Massachusetts: statewide

StatewideSome Restrictions

State law requires dogs be effectively controlled or restrained, with municipalities authorized to enact local leash…

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Attleboro

Heavy Restrictions

Attleboro requires dogs to be restrained with a leash at all times when off the owner's property under city ordinance…

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Fall River

Heavy Restrictions

Fall River requires dogs to be on a leash no more than 6 feet long or confined to a fenced area when off the owner's…

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Lynn

Heavy Restrictions

Lynn prohibits any dog from running at large; dogs must be indoors, in a safely enclosed yard, or on a leash. Dogs are…

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Somerville

Heavy Restrictions

Dogs in Somerville must be leashed in all public areas except designated off-leash dog parks, with fines for violations…

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Worcester

Heavy Restrictions

Worcester requires dogs to be leashed or under control of the owner at all times when off the owner's property under…

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Boston

Some Restrictions

Boston requires dogs under control at all times (MGL c.140 §157). Dog licensing required through city/town clerk (MGL…

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Bristol County

Some Restrictions

Dog leash laws in Bristol County are enforced at the municipal level under MGL Ch. 140. Most towns require dogs to be…

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Brockton

Some Restrictions

Brockton requires every dog to be under restraint at all times on public property, defined as a leash of six feet or…

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Brookline

Some Restrictions

Brookline requires dogs to be leashed or under voice control in public. Dogs in designated off-leash parks may be…

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Cambridge

Some Restrictions

Cambridge bars dogs from running at large off their owner's property, and any dog off the owner's or a consenting…

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Chelsea

Some Restrictions

Chelsea requires every dog owner to keep their dog under restraint whenever it is off the owner's property, per Code of…

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Chicopee

Some Restrictions

In the City of Chicopee, Massachusetts, § 144-4 requires all dogs to be kept under restraint, which § 144-1 defines as…

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Everett

Some Restrictions

In the City of Everett, Massachusetts, no dog can run at large on any street or public place, and no dog is permitted…

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Framingham

Some Restrictions

City Code § 206-3 bars dogs from running at large anywhere in Framingham and requires any dog in a street or public…

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Haverhill

Some Restrictions

In the City of Haverhill, dogs may not leave their owner's property unless held firmly on a leash no longer than six…

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Lawrence

Some Restrictions

A dog in any public place in Lawrence, including city and state property within the city, must be on a lead or chain…

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Leominster

Some Restrictions

Leominster requires every dog outside its owner's property to be held on a leash or chain no more than six feet long…

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Lowell

Some Restrictions

All dogs in Lowell must be leashed when off the owner's property. Off-leash is permitted only at designated dog parks…

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Medford

Some Restrictions

In the City of Medford, Massachusetts, Sec. 6-38 of the Revised Ordinances bans letting any dog run loose or be at…

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New Bedford

Some Restrictions

New Bedford bars dogs from any street or public place unless restrained on a chain or leash no longer than seven feet…

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Norfolk County

Some Restrictions

Norfolk County has no county-level leash law. Dog leash requirements are set by each municipality under MGL c. 140…

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Plymouth County

Some Restrictions

Leash rules are set by each Plymouth County town under authority of MGL c.140 §173. Statewide, MGL c.140 §155 makes a…

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Quincy

Some Restrictions

Quincy, Massachusetts (Norfolk County) bars owners from letting animals go at large off a leash, cord, or chain, or…

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Revere

Some Restrictions

Revere requires dogs under control at all times (MGL c.140 §157). Dog licensing required through city/town clerk (MGL…

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Southborough

Some Restrictions

In Southborough, a dog is a public nuisance when it is found off its owner's premises, attacks persons or domestic…

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Springfield

Some Restrictions

Springfield, Massachusetts requires dogs to be on a leash no longer than six feet in public, unless the dog is inside a…

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Taunton

Some Restrictions

Taunton requires every dog to be under leash or direct control whenever it leaves its owner's property, on someone…

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Weymouth

Some Restrictions

Weymouth Code §6-700 requires dogs to be on a leash not exceeding 6 feet when off the owner's property. Dogs are…

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Breed Restrictions

Bans or special requirements for specific dog breeds, including breed-specific legislation, muzzle requirements, and insurance mandates.

Massachusetts: statewide

StatewideFew Restrictions

Massachusetts state law expressly preempts municipalities from regulating dogs based on breed. Local breed-specific…

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Chelsea

Heavy Restrictions

Chelsea bans dangerous dogs from the city outright unless the police chief has ordered specific restraint conditions…

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Brockton

Significant Restrictions

Brockton has no breed-based dog ban; instead, City Code Section 3-11 lets the chief of police, a mayor-appointed…

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Fall River

Significant Restrictions

Fall River doesn't restrict dogs by breed, state law bars that, but a dog individually declared dangerous or vicious…

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Framingham

Significant Restrictions

Framingham has no breed-specific dog rules: it never singles out a breed. Instead, City Code § 206-2 lets anyone file a…

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Haverhill

Significant Restrictions

Haverhill does not ban any breed by name. Instead, City Code § 137-17 lets the Chief of Police declare an individual…

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Lawrence

Significant Restrictions

Lawrence's ordinance targets behavior, not breed: a dog is 'dangerous or vicious' under § 6.04.160 if it has a history…

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Leominster

Significant Restrictions

Leominster does not restrict dogs by breed; instead Sections 6-2.1 and 6-2.2 regulate individually declared dangerous…

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Medford

Significant Restrictions

Medford does not single out dogs by breed. Instead, Sec. 6-44 of the Revised Ordinances lets the animal control…

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New Bedford

Significant Restrictions

New Bedford has no breed ban; instead an animal control officer can declare any individual dog dangerous or vicious…

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Taunton

Significant Restrictions

Taunton does not regulate dogs by breed; instead City Code Section 191-6 targets dogs of fierce, dangerous or vicious…

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Attleboro

Some Restrictions

Attleboro does not impose breed-specific legislation. The city enforces dangerous dog provisions under its ordinance…

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Bristol County

Some Restrictions

Bristol County does not impose county-level breed restrictions. Massachusetts has no statewide breed ban preemption…

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Chicopee

Some Restrictions

In the City of Chicopee, Massachusetts, the Board of Health decides after a public special hearing whether a dog is a…

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Everett

Some Restrictions

In the City of Everett, Massachusetts, dogs are regulated by conduct, not breed. Section 3-6 lets the police chief or…

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Springfield

Light Restrictions

Springfield, Massachusetts bars its Advisory and Hearing Committee from declaring any dog dangerous based on breed or…

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Boston

Few Restrictions

Boston runs no breed-specific ban. Under Code § 16-1.9B.2, a dog cannot be deemed dangerous "based upon the breed of…

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Brookline

Few Restrictions

Brookline has no breed-specific legislation. Massachusetts does not permit BSL under state law. Dangerous dog…

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Cambridge

Few Restrictions

Cambridge does not impose breed-specific restrictions; Massachusetts General Law Chapter 140 Section 157A prohibits…

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Lowell

Few Restrictions

No Lowell ordinance restricts dogs by breed, and breed-specific regulation is barred statewide: both Lowell Code…

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Newton

Few Restrictions

Newton does not impose breed-specific bans because Massachusetts state law MGL c.140 s.157A prohibits municipalities…

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Somerville

Few Restrictions

Somerville does not impose breed-specific legislation because Massachusetts General Laws Chapter 140 Section 157A…

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Weymouth

Few Restrictions

Weymouth does not have breed-specific legislation. Massachusetts prohibits BSL under state law. Dangerous dog…

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Worcester

Few Restrictions

Worcester does not enforce breed-specific legislation. Massachusetts law regulates dogs based on individual behavior…

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Exotic Pets

Which non-traditional pets are allowed or banned, such as reptiles, ferrets, potbelly pigs, and other exotic animals.

Massachusetts: statewide

StatewideHeavy Restrictions

Massachusetts prohibits private possession of most exotic and wild animals statewide. MassWildlife regulates permits…

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Boston

Heavy Restrictions

Massachusetts prohibits most wild and exotic animals as pets under 321 CMR 9.01. MassWildlife does not issue pet…

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Chelsea

Heavy Restrictions

Exotic pets in Massachusetts regulated under 321 CMR 9.01 (MassWildlife exemption list). Most wild animals are…

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Fall River

Heavy Restrictions

Fall River bars keeping any wild animal, reptile, or snake within city limits except under conditions set by the animal…

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Lynn

Heavy Restrictions

Massachusetts bans private possession of most wild and exotic animals without a MassWildlife license (321 CMR 9.00). In…

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Plymouth County

Heavy Restrictions

Massachusetts bans keeping most wild and exotic animals without a state license. Under MGL c.131 §23, propagating or…

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Revere

Heavy Restrictions

Exotic pets in Massachusetts regulated under 321 CMR 9.01. Most wild animals prohibited without a license; MassWildlife…

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Somerville

Heavy Restrictions

Exotic pets are governed primarily by Massachusetts state law, which bans most wild and dangerous species; Somerville…

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Springfield

Heavy Restrictions

Springfield bars keeping any wild, wild-domestic hybrid, or vicious animal as a pet, for display, or exhibition, with…

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Chicopee

Light Restrictions

In the City of Chicopee, Massachusetts, § 144-9 says the keeping of wild animals must meet all requirements of state…

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Wildlife Feeding

Rules about feeding wild animals like deer, coyotes, or feral cats, and requirements for securing trash to prevent wildlife encounters.

Chelsea

Significant Restrictions

Chelsea bars feeding pigeons and wild birds on any public property and restricts feeding them on private property once…

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Fall River

Significant Restrictions

Fall River bans feeding wild birds in any open space, public or private, citywide. The only exception is a device on…

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Haverhill

Significant Restrictions

Feeding, catching, harassing or otherwise interfering with any wild bird, reptile, amphibian or mammal is banned in…

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Leominster

Significant Restrictions

Leominster prohibits feeding or baiting waterfowl and gulls anywhere in the city, with narrow exceptions for licensed…

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Medford

Significant Restrictions

Sec. 6-108 of the Medford Revised Ordinances bars willfully or intentionally feeding wild, feral or non-domestic…

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Revere

Significant Restrictions

Revere Municipal Code Section 6.03.010 bars feeding, baiting, or leaving food that attracts wild animals or birds…

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Worcester

Significant Restrictions

Worcester bans feeding or baiting gulls and any waterfowl, including ducks, geese and swans, anywhere in the city…

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Everett

Some Restrictions

In the City of Everett, Massachusetts, no person except the Director of the Division of Fisheries and Wildlife or his…

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Quincy

Some Restrictions

Quincy, Massachusetts (Norfolk County) bans feeding or baiting ducks, geese, swans, and other waterfowl in posted areas…

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Springfield

Some Restrictions

Springfield prohibits feeding wild animals or unsterilized feral, stray, or community cats whenever the feeding creates…

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Pet Limits

Maximum number of cats, dogs, or other companion animals allowed per household, including counts that trigger kennel-license requirements.

Massachusetts: statewide

StatewideHeavy Restrictions

Animal cruelty including hoarding is criminalized statewide under M.G.L. Chapter 272 Section 77. Hoarding triggers…

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Taunton

Significant Restrictions

Taunton treats any lot with three or more dogs as a kennel under City Code Section 191-8, requiring a Municipal Council…

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Brockton

Some Restrictions

Brockton caps household dog-keeping at four: Section 3-5(i) states flatly that "no person shall keep or control more…

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Chicopee

Some Restrictions

In the City of Chicopee, Massachusetts, no person can keep or control more than three dogs on a single premises or a…

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Fall River

Some Restrictions

Keeping more than four dogs three months or older on one property makes it a City-licensed kennel in Fall River…

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Framingham

Some Restrictions

Framingham does not cap how many dogs or cats a household may keep outright, but City Code § 206-10 requires anyone…

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Lawrence

Some Restrictions

Lawrence's animal control chapter caps residential dog-keeping at three animals per premises: keep a fourth dog three…

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New Bedford

Some Restrictions

New Bedford defines any household keeping more than three dogs over three months old as a kennel, and the city won't…

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Springfield

Some Restrictions

Springfield, Massachusetts caps most households at three dogs, four if every dog in the home is sterilized, before the…

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Lowell

Few Restrictions

Lowell sets no numeric per-household limit on the number of dogs or cats a resident may keep; instead, every dog over…

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Veterinary Clinic Zoning

Where veterinary clinics, animal hospitals, and emergency animal-care facilities may be located, including overnight-boarding and noise buffers.