In Massachusetts, it is not automatically illegal to tether a dog outside, but state law strictly limits how long, when, and under what conditions a dog can be left chained or tethered.
Key state law: M.G.L. c. 140, § 174E
Massachusetts General Law Chapter 140, Section 174E governs dog tethering and outside confinement. It allows outdoor tethering only if several health, safety, and time‑limit rules are followed; otherwise, leaving a pet chained can be treated as cruel or inhumane chaining, which is illegal.
Time and nighttime limits
- You cannot chain or tether a dog for more than 5 hours in a 24‑hour period.
- You cannot leave a dog chained outside from 10:00 p.m. to 6:00 a.m. unless the tethering lasts no more than 15 minutes and the dog is not left unattended.
Violating these limits can trigger warnings or fines, and repeated violations may lead to impoundment or loss of ownership.
Equipment and safety rules
- The tether must be designed for dogs (no logging chains or devices not meant for tethering).
- The chain or tether cannot weigh more than 1/8 of the dog’s body weight.
- Puppies under 6 months old cannot be tethered outside at all.
If using a trolley (pulley) system, the law also requires specific setup rules (proper collar/harness, swivels, cable height, and configuration to prevent strangulation or tangling).
Weather and “cruel conditions” bans
Under § 174E, you cannot leave a dog outside when a weather advisory, warning, or watch is issued, or when extreme heat, cold, rain, wind, snow, or hail could harm the dog, unless the tethering is for no more than 15 minutes.
The law also prohibits “cruel conditions or inhumane chaining,” including:
- Filthy, waste‑filled areas or access to dirty water.
- Taunting, hitting, or allowing the dog to be attacked by other animals.
Penalties and what to do if you see a chained dog
- First offense: typically a written warning or fine up to about $50.
- Second offense: up to $200.
- Third or later offenses: up to $500, plus possible impoundment of the dog or loss of ownership.
If you see a dog chained in extreme weather, left outside at night, or in obviously dirty/dangerous conditions, you can report it to:
- Local animal control or police.
- The MSPCA Animal Cruelty Hotline (617‑522‑6008).
Sources:
- https://www.mspca.org/cruelty-prevention/
- https://www.animallaw.info/topic/table-state-dog-tether-laws
