Box Truck DOT Rules: Under 26,000 lbs

The 10,001-to-26,000-lb gray zone

A lot of box truck owners assume a truck under 26,001 lbs is too small for DOT markings. For markings, the federal line is lower: a truck used in interstate commerce is a commercial motor vehicle at 10,001 lbs or more, by weight rating or actual loaded weight, whichever is greater (49 CFR 390.5T).

Plenty of box trucks are rated somewhere between 10,001 and 26,000 lbs. Take one with a 25,999-lb GVWR on the door-jamb sticker. Federally it's well over the line. The first question is whether it ever crosses a state line. Turning a box truck or step van into a kitchen? Our food truck DOT guide covers that build.

If you cross state lines

Interstate at 10,001 lbs or more means your legal name or single trade name, exactly as on your MCS-150, plus "USDOT" and your number, on both sides of the power unit. The letters must contrast sharply with the paint and read from 50 feet in daylight (49 CFR 390.21T).

Actual loaded weight counts when it's higher than the rating, so a truck rated under 10,001 lbs but loaded past it still qualifies.

If you stay in one state

Your state decides. From our verified state data:

• 10,001 lbs: Georgia, Illinois, New York, South Carolina, Washington, Wisconsin and others mark in-state trucks at the federal line. Illinois counts rating or actual weight, single or combination (625 ILCS 5/18b-101).
• 17,001 lbs: Pennsylvania. 18,001 lbs: Connecticut.
• 26,001 lbs: Nevada, Texas, Florida, Arizona, Maine, Mississippi, Tennessee and others don't require in-state name + USDOT markings on a 10,001-26,000-lb box truck under their weight rule. Hazmat and passenger triggers can still apply.
• For-hire splits: Ohio marks for-hire trucks at 10,001 and private trucks at 26,001. Oregon, Minnesota and West Virginia mark for-hire trucks at any weight.

So an 18,000-lb box truck making in-state deliveries needs full markings in Illinois and none under Nevada's in-state weight rule. Check your state on the 50-state marking table, or read the intrastate USDOT guide for how the split works.

Name rules that reach lighter trucks

A few states want a name on the truck even below their USDOT line:

• New Jersey: owner name and town, at least 3 inches tall, on every commercial vehicle (N.J.S.A. 39:4-46). See New Jersey.
• California: hauling property for pay calls for the CA carrier number at any weight, and a displayed USDOT number satisfies it (CVC 34507.5). For-hire vehicles also show the operator's name on both sides (CVC 27900).
• Michigan: trucks below its 26,001-lb line fall under a separate name and address marking rule (MCL 257.723).
• Massachusetts: trucks with a load capacity between 2,000 and 10,000 lbs show the owner's name on both sides (540 CMR 2.22(1)).

Where lettering goes on a box truck

• Cab doors carry the required lines. Company name on top, USDOT number below, on both doors. In New York, NYSDOT points to the front fender if the doors have no room.
• Size up. Box truck cabs sit high and the doors are big. We recommend 3-inch lines for every line on a box truck cab. At 3 inches, USDOT 1234567 runs about 31 inches wide, so measure the flat area between body lines first. Too wide? We stack USDOT above the digits at no charge.
• The box is your billboard. Name, phone and website across the side, up to 8 feet wide with our box truck lettering.
• Rear door. Phone and website read well on a roll-up door. Keep each line inside one slat, not across the joints, or it will crack as the door rolls up.

Our install guide covers prep and application. We cut premium outdoor vinyl rated 5+ years.

Decals for this

• Box Truck Decal Package, from $54.95: name, USDOT, MC and GVW for both cab doors, pre-sized at 3 inches
• Box Truck & Trailer Lettering, from $89.95: your name across the full side of the box
• USDOT Number Decals, from $16.00: just the number, set of 2

Lettering for your trade

Pages written for one trade's vehicle, customers and state rules: junk removal truck lettering, pool service truck lettering, roofing truck lettering. See every industry.