Car speed limits in Massachusetts (2026)
Last reviewed: 9 October 2026
In short: Unless a road is posted otherwise, speeds above 30 mph in a thickly settled or business district, 40 mph on other roads and 50 mph on divided highways are prima facie unreasonable. The prima facie limit in a school zone is 20 mph. Listed sections of I-90, I-91 and I-95 have a 65 mph maximum, and fines for exceeding the posted limit in an active construction zone are doubled.
| Rule | What applies |
|---|---|
| Built-up areasPassenger car on public roads | 30 mph (prima facie) [1] |
| Outside built-up areas (single carriageway)Passenger car on public roads | 40 mph (prima facie) [1] |
| Outside built-up areas (dual carriageway or expressway)Passenger car on public roads | 50 mph (prima facie) [1] |
| School zonesPassenger car on public roads | 20 mph (prima facie) in a school zone established by a city or town. [1] |
| Residential streetsPassenger car on public roads | 30 mph (prima facie) inside a thickly settled or business district unless otherwise posted. [1] |
| Roadworks zonesPassenger car on public roads | MassDOT may post a speed limit in an active construction zone; it applies when signs are displayed and work is being performed. Fines for exceeding it are doubled. [2] |
| MotorwaysPassenger car on public roads | 65 mph maximum on listed sections of I-90 (Massachusetts Turnpike), I-91 and I-95. [3] |
Notes
- Prima facie rule over one-eighth of a mile in a thickly settled or business district, unless the way is posted under section 18.
- Prima facie rule over a quarter of a mile on a way that is not a divided highway, outside a thickly settled or business district, unless posted.
- Prima facie rule over a quarter of a mile on a divided highway outside a thickly settled or business district, unless posted.
- Cities and towns that accept c. 90, §17C may set a 25 mph limit inside thickly settled or business districts on roads that are not state highways.
- On other highways the limit is the one posted under special regulations (c. 90, §18).
Sources
- The General Court of the Commonwealth of Massachusetts: General Laws, Part I, Title XIV, Chapter 90, Section 17: Speed limits (Internet Archive snapshot of 10 March 2026) (consulted 9 October 2026) · all sources
- The General Court of the Commonwealth of Massachusetts: General Laws, Part I, Title XIV, Chapter 90, Section 17D: Speed limits in active construction zones (Internet Archive snapshot of 10 June 2026) (consulted 10 October 2026) · all sources
- The General Court of the Commonwealth of Massachusetts: General Laws, Part I, Title XIV, Chapter 90, Section 17A: Speed limit; Massachusetts Turnpike (Internet Archive snapshot of 26 September 2026) (consulted 10 October 2026) · all sources
Massachusetts and neighbouring states
| State | Built-up areas | Outside built-up areas (single carriageway) | Outside built-up areas (dual carriageway or expressway) | Motorways |
|---|---|---|---|---|
| Massachusetts | 30 mph (prima facie) | 40 mph (prima facie) | 50 mph (prima facie) | 65 mph (listed I-90, I-91, I-95 sections) |
| Connecticut | Set by posted limits | Posted limit; 55 mph maximum | — | Up to 65 mph (as posted) |
| New Hampshire | 30 mph | 55 mph (45 mph on unimproved rural highway) | 55 mph; 65 mph on divided interstate/turnpike | 65 mph (70 on part of I-93) |
| New York | 55 mph unless posted lower | 55 mph | 55 mph | 55 mph unless posted higher |
| Rhode Island | 25 mph | 50 mph day, 45 mph night | — | ⚠ Not yet verified |
| Vermont | 50 mph max; local 25 mph or more | 50 mph | — | ⚠ Not yet verified |
More rules in Massachusetts
- CannabisPossession for personal use: Legal for adults 21+, within limits · Growing at home: Yes: up to 6 plants
- Minimum age for a car driving licenceMinimum age for a car licence: 16½ (junior operator licence) · Earliest age to drive a car supervised: 16 (learner's permit)
- E-bikes and speed pedelecsLegal class: Class 1 and 2 (bicycle)
- FireworksConsumers may buy and use category F2 fireworks: No (sparklers included)
- Knives and pepper sprayFolding pocket knives: Not named unless locking or spring-release · Locking or one-handed knives: Locking-draw devices banned; switchblade ban void
- Statutory minimum wageNational statutory minimum wage: Yes · Current adult minimum wage (gross): $15.00 per hour
- Using a mobile phone while drivingHolding a phone while driving banned: Banned · Hands-free use: Hands-free allowed
- Seat belts and child seatsSeat belt compulsory in front seats: Yes · Seat belt compulsory in rear seats: Yes
- Tobacco and nicotine age limitsMinimum age to buy tobacco: 21 · Minimum age to buy e-cigarettes: 21
- Drinking age and alcohol salesMinimum age to buy beer and wine: 21 (sales to under 21 banned) · Minimum age to buy spirits: 21 (sales to under 21 banned)
- Drink-driving limitsBlood alcohol limit for ordinary drivers: 0.08% · Lower limit for novice or young drivers: 0.02% = licence suspension (under 21)
Related pages
General information, not legal advice. Rules change: check the official source before you fly or ride.