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Heat, cold and the law

Leaving a dog in a hot car: Massachusetts law

The section is short, and it says more than most people assume: it covers cold as well as heat, every animal rather than only dogs, and exactly what a passer-by may do. Below is the law in plain words, a summer plan for Cape Ann errands, and the point where the statute stops and judgment takes over. None of it is legal advice; for an incident of your own, ask the police department or a lawyer.

A red and white dog leans out of a car window on a country road beside a green field.

What is prohibited

The ban turns on risk to the animal's health, and the law names no temperature

Section 174F(a) reads in full: 'A person shall not confine an animal in a motor vehicle in a manner that could reasonably be expected to threaten the health of the animal due to exposure to extreme heat or cold.' Three things follow from the wording. It applies to any animal, not only to dogs. It applies on a January night as much as a July afternoon. And it sets no temperature, no number of minutes and no rule about open or closed windows.

That last point is where the law is genuinely open. Whether a particular car, parked in a particular spot on a particular day, 'could reasonably be expected' to threaten a dog's health is left to the officer and, if it is contested, to a court. The safe reading is the simple one. If you would not sit in the closed car yourself for the length of the errand, neither should the dog, and a hard cold snap deserves the same caution for a small, elderly or thin-coated dog.

  • Covers any animal, not only dogs
  • Covers extreme cold as well as extreme heat
  • No temperature, time limit or window rule in the text
  • The test: could it reasonably be expected to threaten the animal's health

Fines and enforcement

Fines climb to $500 for repeat offenses, and a cruelty charge stays possible

A violation of the ban is a civil infraction under section 174F(g): a fine of not more than $150 for a first offense, not more than $300 for a second, and not more than $500 for a third or later one. Cities and towns enforce it through their animal control officers or police officers, using the noncriminal disposition process in chapter 40, section 21D. Subsection (h) adds that nothing in the section rules out prosecution under chapter 272, section 77, the animal cruelty statute.

If an officer or firefighter takes the animal out, subsection (c) requires a written notice left in a secure and conspicuous place on or in the car, with the officer's name and title and the address where the animal can be collected. The owner gets the animal back only after paying every charge that has built up for its maintenance, care, medical treatment and impoundment, on top of any fine.

If you see a dog in a hot car

A bystander may enter only after calling 911 and meeting every condition in the statute

Officers have the clearest power. After making reasonable efforts to find the owner, an animal control officer, police officer or firefighter may enter the vehicle 'by any reasonable means' to protect the animal, may not search the car or seize anything unless the law otherwise allows, and is immune from liability for the removal. For everyone else the statute is stricter: a bystander must also first make reasonable efforts to find the owner, and then meet four conditions before entering.

The four conditions in subsection (e) are these. Notify law enforcement or call 911 before entering. Determine that the car is locked or there is no other reasonable way out, and use no more force than reasonably necessary. Hold a good faith and reasonable belief, based on what you can see, that entry is needed to prevent imminent danger or harm to the animal. Then stay with the animal in a safe place close to the car until police or another first responder arrives. A person who meets them is immune from criminal or civil liability for the removal.

  1. 01

    Look for the owner first: ask in nearby shops and have the store page the car's owner

  2. 02

    Call 911 and give the car's description, the location and the animal's condition

  3. 03

    Check every door before you consider force

  4. 04

    Enter only if you believe in good faith that the animal faces imminent harm, using no more force than necessary

  5. 05

    Move the animal to shade nearby and stay with it until police or another first responder arrives

WhoWhen they may enterLiability for the removal
Animal control officer, police officer or firefighterAfter reasonable efforts to locate the owner, to protect the animal's health and safetyImmune, along with the agency or town that employs them
Any other personAfter reasonable efforts to locate the owner, and only when all four conditions in subsection (e) are metImmune from criminal or civil liability when the conditions are met

Summer on Cape Ann

Beach closures and festival traffic make the summer errand the risky one

On Cape Ann the hot car problem follows a calendar. Gloucester closes most of its beaches to dogs from May 1 and Good Harbor from April 1, Rockport keeps dogs off its beaches from June 1 to September 15, and Essex closes its beaches in June, July and August, so the summer dog is the one left behind when the family heads for the sand. Add St. Peter's Fiesta in late June, the July 3 fireworks and the Schooner Festival on Labor Day weekend, and a quick stop downtown can become an hour of hunting for parking.

Cold counts as well. The statute puts extreme cold in the same sentence as heat, so a dog waiting in the car through a long winter appointment, or on the evening of a nor'easter, is inside the rule. The practical habit is to plan the errand around the dog rather than the dog around the errand. When the dog cannot come inside wherever you are going, it is better off at home or somewhere built for dogs than in a parked car.

The alternative

A half day at Dogtown costs $33, less than a first-offense fine

If the dog cannot come into the store, the restaurant or the beach, it is better off in a playgroup than in the back seat. A half day of daycare is $33 and a full day $42, with a fenced turf yard, splash pools and indoor play floors for the hottest afternoons. Weekday drop-off windows run 6:30 to 9:30 AM, 12 to 1 PM and 4 to 6:30 PM, and Saturday's run 8 to 10 AM, 12 to 1 PM and 4 to 6 PM, so a day of errands can usually be built around one of them.

A first visit needs the free evaluation, on a weekday between 6:30 and 9:30 AM by appointment, with Rabies, DHPP and Bordetella records and a current city dog license; book it in spring, before the summer errands begin. In Gloucester, Rockport, Essex and Manchester-by-the-Sea the Pup Van collects and returns dogs for $10 each way, which keeps the dog out of your car entirely on a day you will be running from place to place.

  • Half day $33, full day $42
  • Weekday drop-off from 6:30 AM; Saturday from 8 AM
  • Free evaluation first, on a weekday morning
  • Pup Van at $10 each way in four Cape Ann towns

At Dogtown

Somewhere better than the car

A daycare day or a Pup Van ride keeps your dog cool, busy and out of the parking lot while you run the errands.

Every price on one page

Pick-up & drop-off

The Pup Van comes to you.

Pup Van pick-up and drop-off is available for $10 each way in the Rockport, Gloucester, Essex and Manchester-by-the-Sea area. Not in the area? Ask us for pricing.

  • Rockport
  • Gloucester
  • Essex
  • Manchester-by-the-Sea
The Dogtown Pup Van: a navy van with dog portraits, the Dogtown logo and the phone number on the side

Asked and answered

Questions people ask about this

Short, complete answers you can act on today. More in the full FAQ.

Is it illegal to leave a dog in a car in Massachusetts?
It is illegal to confine an animal in a car in a way that could reasonably be expected to threaten its health through extreme heat or cold, under chapter 140, section 174F. The law does not forbid every minute in a parked car; it forbids the risky ones, and it sets no temperature. When in doubt, take the dog with you or leave it at home.
Does cracking the windows make it legal?
The statute does not mention windows. The only question it asks is whether the confinement could reasonably be expected to threaten the animal's health through extreme heat or cold. Open windows do not settle that by themselves, so judge the day, the shade, the length of the errand and the dog, and assume an officer will weigh the same things.
Can I break a car window to save a dog in Massachusetts?
Only within section 174F(e). After reasonable efforts to find the owner, you must call 911 or notify police first, confirm the car is locked with no other way in, use no more force than necessary, believe in good faith that entry is needed to prevent imminent harm, and stay with the animal nearby until a first responder arrives. Meeting all of them gives immunity for the removal.
What does it cost to get a dog back after an officer removes it?
Section 174F(c) says the owner may retrieve the animal only after paying all charges that have accrued for its maintenance, care, medical treatment and impoundment. Those charges are separate from the civil fine, which is up to $150 for a first offense. The officer leaves a written notice on or in the car saying where the animal can be collected.
Does the hot car law apply in winter?
Yes. The words are 'extreme heat or cold,' so a dog shut in a freezing car on a winter night falls under the same section as one left in July sun. Cape Ann winters bring nor'easters and sharp cold snaps, and small, elderly and short-coated dogs deserve the most caution.

More questions? Read the full FAQ

Sources

Rules and dates change. We re-check every beach, licensing and ordinance page each spring and fall; the source above is the current word.

Next step

Leave the car, not the dog

Book a free weekday evaluation now, and summer errand days can end in a playgroup instead of a parking lot.

  1. 01Free evaluationWeekdays 6:30 – 9:30 AM
  2. 02Book a dayOnline, in the app or by phone
  3. 03Play, rest, repeatReport card at pick-up

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