Does a District of Columbia truck need a USDOT number for in-state work?
Not for in-state work alone, as far as the District’s published rules show. Any interstate work — including an in-state leg of a load that started or ends in another state — needs one under the federal rule at 10,001 lb.
Checked against District of Columbia’s official sources in September 2026.
The rule in District of Columbia
Who it covers: All motor carriers of property and passengers, including common, contract and private carriers, operating covered vehicles on DC streets and highways; intrastate carriers must follow the chapter.
The weight line: DC's commercial transportation safety rules (which adopt the federal safety rules) apply to vehicles over 10,000 lb GVWR or GCWR, vehicles designed for more than 15 passengers, and placarded hazmat vehicles. This is the safety-rules line; no DC USDOT requirement was found.
Exemptions the state lists:
- School buses and school bus operations
- Transportation by federal, DC, state or local government
- Occasional transportation of personal property by individuals not for compensation nor in furtherance of a commercial enterprise
- Transportation of human corpses or sick and injured persons
- Police, fire and rescue vehicles in emergency operations
“Apart from federal regulations, some states require their intrastate commercial motor vehicle registrants to obtain a USDOT Number. These states include:” source
“The gross vehicle weight rating (GVWR) or gross combination weight rating (GCWR) of the vehicle exceeds ten thousand (10,000) pounds” source
Who to ask: Metropolitan Police Department, Motor Carrier Safety Unit (named in 18 DCMR Chapter 14)
Safety rules for in-state trucks
Covered vehicles must follow 49 CFR Parts 171-180, 383, 387 and 390-397, adopted by reference, with § 390.3(a) amended to add intrastate commerce. (18 DCMR §§ 1400.2, 1405.1)
- Intrastate carriers send notices or requests the federal rules direct to US DOT to the Metropolitan Police Department instead.
The federal lines, which apply in District of Columbia 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 District of Columbia require a USDOT number for intrastate trucks?
Not for in-state work alone, as far as the District’s published rules show. Any interstate work — including an in-state leg of a load that started or ends in another state — needs one under the federal rule at 10,001 lb.
What is the CDL weight in District of Columbia?
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 District of Columbia?
Metropolitan Police Department, Motor Carrier Safety Unit (named in 18 DCMR Chapter 14).
What we could not confirm
- No District source says outright that in-state carriers don't need a USDOT number; the answer rests on FMCSA leaving DC off its list. DC's rules send in-state carriers' federal filings to the Metropolitan Police Department, and whether it expects a USDOT number was not confirmed.
- Most work in DC crosses into Maryland or Virginia. That is interstate commerce, and it needs a federal USDOT number at 10,001 lb.
Sources
- FMCSA, Do I Need a USDOT Number? (state list; DC absent)
- DC Regulations, 18 DCMR Chapter 14 Commercial Transportation Safety (section texts §§ 1400, 1401, 1402, 1405 downloaded as Word files)
General information, not legal advice. It summarises District of Columbia’s published rules as read in September 2026; confirm with the Metropolitan Police Department or FMCSA.