District of Columbia Oversize & Overweight Permits
The District is tiny and every big move is hand-handled. Over 8'6" wide, 13'6" high, 40 or 55 ft long, or the axle limits needs a single-haul permit through DDOT's TOPS system. MPD police escort is required at 75 ft, 12 ft wide, over 13'6" high, or 120,000 lb. A single trip is $30 one-way or $50 round-trip; an annual truck tag is $85. Timing is set on the permit, and big loads route off-peak.
When District of Columbia needs a permit
The District is tiny and every big move is hand-handled. Over 8'6" wide, 13'6" high, 40 or 55 ft long, or the axle limits needs a single-haul permit through DDOT's TOPS system. MPD police escort is required at 75 ft, 12 ft wide, over 13'6" high, or 120,000 lb. A single trip is $30 one-way or $50 round-trip; an annual truck tag is $85. Timing is set on the permit, and big loads route off-peak.
Thresholds, escorts, and curfews
- Legal max before a permit: Permit needed over 8'6" wide, 13'6" high, over 40 ft long (single unit) or 55 ft (combination), or over the District's axle/gross limits (21,000 lb single, 34,000 lb tandem), per 18 DCMR Chapter 25. Apply for a single-haul permit for each inbound, outbound, or round-trip move through DDOT's TOPS online system.
- Escort / pilot car: Police (MPD) escort is required at 75 ft or longer, 12' wide or wider, over 13'6" high, at 120,000 lb gross or more, or for any Class 1 explosives (Division 1.1, 1.2, 1.3). Below those thresholds DDOT recommends private pilot/escort vehicles, and TOPS notifies MPD, which may add oversight.
- Superload: No formal superload tier. The District is small, so every large move is a case-by-case single-haul permit with MPD escort and route approval. Allow about a week for a single-haul permit and two weeks for an annual tag.
- Travel curfew: The District posts no fixed statewide curfew for permitted loads; DDOT confirms a route by size and weight and sets timing on the permit. Tight downtown streets and rush-hour congestion push the biggest loads to off-peak or overnight routing. Confirm the exact hours when your single-haul permit is issued.
- Permit fee: Fees are posted: a single-trip permit is $30.00 one-way or $50.00 round-trip; an annual tractor-trailer tag is $85.00, but a single trip is required instead when a load tops 8'6" wide, 13'6" high, or 70 ft long. Pay in TOPS by card or by check to the DC Treasurer.
District of Columbia Oversize Permit FAQ
When do I need an oversize permit in District of Columbia?
Does District of Columbia require a pilot car or escort?
Can I move an oversize load at night or on weekends in District of Columbia?
What does an oversize permit cost in District of Columbia?
Reference information for planning, not legal advice. Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it. Last reviewed July 2026. Source: https://freight.ddot.dc.gov/pages/oversizeoverweight-vehicles. See our Terms & Disclaimer.
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