District of Columbia Code Division VIII. General Laws. § 50-704. Commercial vehicle restrictions.

(1) Any vehicle more than 26,000 pounds GVWR;

(2) Emergency or law enforcement vehicles;

(3) Nonroad vehicles, including farm and construction vehicles;

(4) Vehicles in fleets operating in the covered area with fewer than 10 vehicles;

(5) Vehicles in a covered fleet not capable of being centrally fueled;

(6) Vehicles which are garaged under normal operations at a personal residence;

(7) Vehicles leased or rented to the general public;

(8) New car demonstration vehicles; and

(9) Vehicles used for product demonstrations and tests.