Regulation numbers
Pa.P.U.C. Number Decal (Pennsylvania)
Pa.P.U.C. No. A- followed by your number, such as Pa.P.U.C. No. A-123456. Type it, preview it, order. $18.99 per decal.
$18.99per decal
Rules and requirements
Pennsylvania DOT Number Requirements for Trucks
Pennsylvania uses a 17,001 pound line for intrastate USDOT numbers, and carriers certificated by the PUC also display a Pa.P.U.C. number. Here is what the rules say and how to letter it.
Pennsylvania has two different numbers that can end up on a truck, and they come from two different rules. One is the USDOT number, which Pennsylvania requires for intrastate trucks at 17,001 pounds and up. The other is a Pennsylvania Public Utility Commission (PUC) number for carriers the PUC certificates. This guide sorts out which is which. It is a summary of the rules as we read them on 2026-10-13: confirm your own truck with PennDOT or the PUC before you order lettering.
The USDOT number in Pennsylvania
Pennsylvania adopts the federal marking approach for commercial vehicles that stay in the state. Under the state's rule, an intrastate commercial vehicle needs a USDOT number when it has a gross vehicle weight rating or gross combination weight rating (or actual weight) of 17,001 pounds or more, when it carries 8 or more passengers for hire or 15 or more not for hire, when it is a school bus, or when it carries hazardous materials that require placards (67 Pa. Code 231.8).
For what the marking looks like, the federal rule in 49 CFR 390.21 asks for the name and the USDOT number on both sides, in letters that contrast sharply with the background and can be read from 50 feet in daylight. Confirm with PennDOT how your intrastate truck should be marked.
The PUC number
Some Pennsylvania carriers are regulated by the Public Utility Commission, for example certain for-hire common carriers. These carriers display the name and a number in the form "Pa.P.U.C. No. A-" followed by their number. The PUC's rule asks for letters at least 2 inches high and one half inch wide, on each side of the vehicle (52 Pa. Code 29.71).
If you are not sure whether your business is a PUC-certificated carrier, check your certificate or ask the PUC.
What the lettering looks like
- USDOT only: the company name on one line and `USDOT 1234567` on the next.
- PUC carrier: the company name and `Pa.P.U.C. No. A-123456` (your number), with letters at least 2 inches high.
Our USDOT number decal and two-line decal let you type exactly your wording, see it on a truck door and pick the size and colors. Check the spelling and digits against your paperwork.
Getting the number
The USDOT number comes from FMCSA to your company. Read how to get a USDOT number. PUC numbers come from the PUC when it certificates your authority. We do not issue numbers.
Sources
Frequently asked questions
Does a Pennsylvania truck under 17,001 pounds need a USDOT number?
Under the state rule that applies to intrastate commercial vehicles, 17,001 pounds is the weight line for the USDOT number, along with the passenger, school bus and placarded hazmat cases. A truck in interstate commerce follows the federal 10,001 pound line instead.
Do I need both a USDOT number and a PUC number?
They come from different rules. Many carriers need only the USDOT marking. A carrier certificated by the PUC also displays its PUC number. Check which applies to you.
How big do the letters need to be?
The PUC number must be at least 2 inches high and one half inch wide. The USDOT marking follows the federal legibility test: readable from 50 feet in daylight.
Can I use a decal?
The federal rule says the marking may be painted or may be a removable device that meets the same legibility requirements. Ask PennDOT or the PUC if you want state-specific confirmation. Our decals are made from 3M and Oracal vinyl.
Checked 2026-10-13. Rules change, so confirm with the agency.
Decals for this
All decals →USDOT only
USDOT Decal Sticker
Just the number: your USDOT number in clear lettering. Same 3M/ORACAL vinyl, same 3-year warranty.
$18.99per decal
Regulation numbers
USDOT + MC Two-Line Decal
The classic interstate stack: USDOT over MC. Centered, spaced, 2" letters. Add GVW or CA# in the builder.
$22.99per decal
Keep reading
All guides →State numbers
USDOT Number Requirements by State
Most states have intrastate trucks show the federal USDOT number, and a few add their own number. Here is what we verified state by state, with official links.
Read →Rules and requirementsWhat Is a USDOT Number? A Plain Explanation
A USDOT number is the identification number FMCSA issues to a motor carrier, shown on the truck with the company name. Here is what it is, what it is not and how to check yours.
Read →Rules and requirementsWhere to Put the USDOT Number on Your Truck
The rule says both sides of the power unit but names no exact spot. Use this placement checklist for doors, pickups, rentals, leased trucks and trailers.
Read →Rules and requirementsHow Big Do USDOT Numbers Need to Be on a Truck?
The federal marking rule gives no letter height in inches. It asks for sharp contrast and lettering readable from 50 feet. Here is how to check your own truck.
Read →Rules and requirementsDo I Need to Put My Company Name on My Truck?
If your truck is covered by the federal marking rule, the operating carrier's name goes on both sides next to the USDOT number. Here is which name, and what leases change.
Read →Decals for your vehicle
All decals by vehicle →By need
DOT Number Stickers for Trucks
DOT number stickers made to order in 3M and Oracal vinyl. Compare USDOT-only, two-line, name and four-line decals from $18.99, with a 3-year guarantee.
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See decals →See it on a truck door first
Type your lines, pick the size and colors, and watch your decal on the door. Questions? Email info@workdecals.com.