Does a Pennsylvania truck need a USDOT number for in-state work?
Yes. Pennsylvania requires a USDOT number for in-state commercial vehicles at 17,001 lb and over (GVWR, GCWR or actual weight, whichever is greater), even if they never cross a state line.
Checked against Pennsylvania’s official sources in September 2026.
The rule in Pennsylvania
Who it covers: Motor carriers of property or passengers in intrastate commerce, whether common, contract or private carriers (67 Pa. Code § 231.2(b)).
The weight line: In Pennsylvania, an in-state truck (or truck and trailer) is a commercial motor vehicle, and must show a USDOT number, at 17,001 lb or more by rating or actual weight, whichever is greater. Passenger vehicles above the stated counts, school buses and placarded hazmat also count.
Exemptions the state lists:
- Farm trucks, school buses and government vehicles are exempt from the USDOT display requirement when operating intrastate (PennDOT fact sheet)
- Nonbusiness private passenger carriers and farmers not hauling placarded hazmat are outside Part 385 safety-fitness procedures (67 Pa. Code § 231.8(13))
“A truck with a gross vehicle weight rating (GVWR) or gross combination vehicle weight rating (GCWR) of 17,001 pounds or more which is operated in intrastate commerce is required to display the carrier’s USDOT number on the side of the truck.” source
“Has a gross vehicle weight rating or gross combination weight rating, or gross vehicle weight or gross combination weight, of 17,001 pounds or more, whichever is greater.” source
Safety rules for in-state trucks
PennDOT adopts 49 CFR Parts 382, 385, 390, 391, 392, 393, 395 and 396 for intrastate commerce, with a 17,001 lb commercial motor vehicle definition and other modifications. (67 Pa. Code §§ 231.7, 231.8)
- The intrastate weight line is 17,001 lb, not the federal 10,001 lb.
- The federal minimum-age-21 rule (391.11(b)(1)) is removed for intrastate commerce.
- The federal motor carrier identification report rule (49 CFR 390.19, the MCS-150 filing) is deleted from the intrastate adoption. The display requirement stays, and the State Police brochure tells carriers to get the number from FMCSA.
- Drivers regularly employed as of September 23, 1995 who cannot meet the federal physical standards may be qualified for intrastate driving only, if the medical examiner and carrier certify them.
The federal lines, which apply in Pennsylvania too
- 10,001 lb and interstate commerce: a USDOT number, a medical card, a driver qualification file, the hours-of-service rules and daily inspections (49 CFR 390.5).
- 26,001 lb: a CDL, for a single vehicle or a combination towing more than 10,000 lb (383.5). The CDL rules cover in-state driving as well (383.3), and drug and alcohol testing follows the CDL (382.103).
Check your own truck and trailer
Questions
Does Pennsylvania require a USDOT number for intrastate trucks?
Yes. Pennsylvania requires a USDOT number for in-state commercial vehicles at 17,001 lb and over (GVWR, GCWR or actual weight, whichever is greater), even if they never cross a state line.
What is the CDL weight in Pennsylvania?
The same as everywhere: 26,001 lb for a single vehicle, or a combination of 26,001 lb towing more than 10,000 lb. The federal CDL rules apply to in-state driving too (49 CFR 383.3), and drug and alcohol testing follows the CDL (382.103).
Who administers the rule in Pennsylvania?
Pennsylvania Department of Transportation (PennDOT), which issues the regulations; enforcement is by the Pennsylvania State Police Commercial Vehicle Safety Division.
What we could not confirm
- Pennsylvania's rules remove the federal age-21 rule for in-state drivers, but the resulting minimum age was not found.
Sources
- PennDOT Fact Sheet, USDOT Number (April 2025)
- PA State Police brochure, Intrastate USDOT Number Requirements (rev. 09-15)
- 67 Pa. Code Chapter 231 (Pennsylvania Code & Bulletin, PDF)
- FMCSA, Do I Need a USDOT Number? (state list)
General information, not legal advice. It summarises Pennsylvania’s published rules as read in September 2026; confirm with PennDOT or FMCSA.