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Somerville, MA Parking Rules: Commercial & Oversized Vehicles (2026)

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

Key Facts

Weight limit
2.5 tons residential overnight ban
Loading zones
15 to 30 minutes posted
Idling
5 minute state limit
Dealer plates
Treated as commercial
Enforcement
Parking Control Officers

Summary

Commercial vehicles over 2.5 tons cannot park overnight on Somerville residential streets. Loading zones are time-limited and signed by block.

Section 16A. No person shall cause, suffer, allow or permit the unnecessary operation of the engine of a motor vehicle while said vehicle is stopped for a foreseeable period of time in excess of five minutes. This section shall not apply to (a) vehicles being serviced, provided that operation of the engine is essential to the proper repair thereof, or (b) vehicles engaged in the delivery or acceptance of goods, wares, or merchandise for which engine assisted power is necessary and substitute alternate means cannot be made available, or (c) vehicles engaged in an operation for which the engine power is necessary for an associate power need other than movement and substitute alternate power means cannot be made available provided that such operation does not cause or contribute to a condition of air pollution. Whoever violates any provision of this section shall be punished by a fine of not more than one hundred dollars for the first offense, nor more than five hundred dollars for each succeeding offense.

Source: MGL c.90 s.16A Anti-IdlingView official code

Full Breakdown

Somerville Traffic Commission rules prohibit any commercial vehicle rated over 2.5 tons (5,000 pounds) from parking on a residential street between specified nighttime hours, typically 10 PM to 6 AM. Box trucks, stake-body trucks, landscaping trailers, and contractor pickups with commercial plates must return to a yard or commercial district overnight. Loading zones in Union, Davis, and Ball Squares are signed for 15 or 30 minute deliveries and are enforced strictly. Commercial vehicles displaying a valid resident permit may still be cited if they exceed weight or length limits for the zone. Vehicles with dealer or livery plates are treated as commercial for parking purposes. Food service delivery drivers must use posted loading zones or valet zones and cannot idle more than 5 minutes under Massachusetts anti-idling law (MGL c.90 s.16A).

Frequently Asked Questions

Can I park my work van at home overnight?
Only if it is under the 2.5 ton threshold and has a valid resident permit. Full-size box trucks and vehicles with commercial plates over the weight limit must be stored at a commercial yard.
How long can I idle while making a delivery?
Massachusetts law limits idling to 5 minutes. Somerville Police and Health enforce this, and violations start at $100 per offense.

Sources & Official References

Other rules in Somerville

All Somerville rules

Compare Somerville to another location·View the Massachusetts parking rules overview

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Commercial & Oversized Vehicles in Nearby Cities

How other cities in this county handle commercial & oversized vehicles.

Newton, MA
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Lowell, MA
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