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What Massachusetts requires on a commercial truck

The short answer

Trucks that never leave Massachusetts: Since September 2018, Massachusetts intrastate trucks from 10,001 lbs mark the USDOT number federal-style: with the carrier name, both sides, sharp contrast, readable from 50 feet.

Also in Massachusetts: Legal / Trade Name (hauls for hire and 10,000 lbs or less (except farm vehicles)).

Interstate trucks follow the federal rule: name and USDOT number on both sides of the power unit from 10,001 lbs (49 CFR 390.21T(b)(2)); other triggers in the federal box below.

✓ Verified 2026-07-31 against the sources below · next review 2027-01-27

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The Massachusetts rules in detail

USDOT Number

Required rule MA-INTRASTATE-USDOT

WhoMassachusetts trucks that never leave the state
When (any one of these)10,001 lbs or more · 16+ passengers · placard-level hazmat
What goes on the truckUSDOT [your USDOT number]
Size and placementReadable from 50 feet in daylight, no inch minimum (we cut 2-inch number) · sharp contrast · both sides of the power unit

Legal sources

  • 540 CMR 2.22(2) (eff. Sept. 1, 2018) — 10,001+ lbs GVWR/GCWR, >15 passengers, placardable hazmat; marking per 49 CFR 390.21 — source text: "a gross vehicle weight rating or gross combination weight rating of 10,001 or more lbs. ... in a manner conforming to the provisions of 49 CFR 390.21"

Verified 2026-07-31 · next review 2027-01-27

Legal / Trade Name

Required rule MA-FORHIRE-NAME

WhoTrucks based in Massachusetts
When (all of these)hauls for hire · 10,000 lbs or less
Exceptfarm vehicles
What goes on the truck[your company name]
Size and placementReadable from 50 feet in daylight, no inch minimum (we cut 3-inch name) · sharp contrast · each side, plainly visible

Massachusetts 'motor truck' name marking applies to trucks with a load-carrying capacity between 2,000 and 10,000 lbs (heavier trucks fall under the USDOT marking rule instead): owner's name on both sides, plainly visible, readable from 50 feet in daylight. Trucks leased over 30 days may show the owner's or lessee's name (or both). Farm vehicles within 150 air-miles are exempt.

Legal sources

  • 540 CMR 2.22(1)(a) — 'Motor Truck' = load capacity between 2,000 and 10,000 lbs — source text: "maximum load carrying capacity of between 2,000 lbs. and 10,000 lbs."
  • 540 CMR 2.22(1)(b) — owner's name both sides, legible 50 ft daylight — source text: "owner's name marked on the truck, to be plainly visible from each side ... readily legible during daylight hours from a distance of 50 feet"

Verified 2026-07-31 · next review 2027-01-27

The federal baseline, the same in every state
  • USDOT Number + Legal / Trade Name, both sides of the power unit (49 CFR 390.21T(b)(2); 49 CFR 390.21T(b)(1))
  • Readable from 50 feet in daylight, no inch minimum · sharp contrast
  • MC Number: recommended, not required (49 CFR 390.21T)
  • Triggers: 10,001 lbs or more · placard-level hazmat · 9+ passengers for hire · 16+ passengers

Verified 2026-07-23 · next review 2026-10-21

Who enforces it in Massachusetts

Massachusetts RMV — Commercial Vehicle Programs
Phone: (857) 368-8000
mass.gov

Massachusetts truck marking FAQ

Do I need a USDOT number on a truck that never leaves Massachusetts?

Yes: 10,001 lbs or more, 16+ passengers or placard-level hazmat (540 CMR 2.22(2)).

At what weight do the Massachusetts marking rules start?

USDOT Number: from 10,001 lbs. Legal / Trade Name: up to 10,000 lbs.

Are farm trucks exempt in Massachusetts?

Legal / Trade Name: not required on farm vehicles.

Does hauling hazmat change the rules in Massachusetts?

Yes: placard-level hazmat brings in the USDOT Number marking at any weight, per 540 CMR 2.22(2).

Does it matter whether I haul for hire in Massachusetts?

Yes. Legal / Trade Name: hauls for hire and 10,000 lbs or less (except farm vehicles).

Do passenger vans and buses fall under the Massachusetts rules?

Yes, at 16+ passengers, per 540 CMR 2.22(2).

Get exactly what Massachusetts requires, cut to spec

USDOT decals for Massachusetts

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Truck marking rules in other states

California · Florida · Georgia · New Jersey · Ohio · Texas · Washington · West Virginia

All 50 states in one table →

General information, not legal advice. The agency above has the final word.