D.C. Mun. Regs. tit. 18, § 2405
2405.1 No person shall stop, stand, or park a vehicle in any of the following places, except when necessary to avoid conflict with other traffic, in compliance with law, or at the direction of a police officer or traffic control device:
2405.2 No person shall stand or park a vehicle, whether occupied or not, in any of the following places (including for the purpose of loading or unloading materials), except when necessary to avoid conflict with other traffic, or at the direction of a police officer, traffic control sign, or signal; Provided, that a vehicle may stop momentarily to pick up or discharge a passenger or passengers:
curbside when stopping to make a sale, as close as possible to a pedestrian cross-walk without entering the intersection, and without unduly interfering with the flow of traffic;
(d) Within twenty-five feet (25 ft.) of the approach side of any “STOP” or “YIELD” sign located at the side of the roadway;
(e) Within fifty feet (50 ft.) of the nearest railroad crossing;
(f) Within twenty feet (20 ft.) of a fire station driveway entrance;
(g) In or on any street or roadway when such parking will reduce the width of the open roadway to less than ten feet (10 ft.);
(h) In front of any barricade or sign that has been placed for the purpose of closing the highway;
(i) Within three feet (3 ft.) of the front or rear of another vehicle or vehicles parked at or parallel to the curb, except where dual parking meters are installed and curb parking spaces marked to ensure maneuvering space between “dual parked” vehicles;
(j) Except where otherwise provided under law or regulation, on a sidewalk space; Provided, that bicycles may be parked on a sidewalk in a manner which does not obstruct pedestrian traffic; or
(k) In a fire lane.
2405.3 No person shall park a vehicle, whether occupied or not, otherwise than temporarily for the purpose of and while actually engaged in loading or unloading of passengers or freight in any of the following places:
(a) On the public parking between the sidewalk space and the building line, except parking shall be permitted on public parking at those locations designated under this title and at locations authorized by permit and upon payment of rent;
(b) Between a safety zone or channelizing island and the adjacent curb or within ninety feet (90 ft.) of points on the curb immediately opposite the ends of a safety zone or channelizing island unless otherwise indicated by official signs;
(c) On the roadway side of any vehicle stopped or parked at the edge or curb of a street;
(d) Within twenty-five feet (25 ft.) of either side of motorists’ courtesy mail boxes;
(e) In the case of any commercial vehicle not registered in the District of Columbia or a District of Columbia registered commercial vehicle with more than 2 axles or more than 4 wheels, on any public thoroughfare in front of, alongside, or in the rear of any private dwelling or apartment, church, school, playground, hospital, alongside or around any public park except on stands established in accordance with this chapter; Provided, that contractors may park trucks in front of, alongside, or in the rear of such property while engaged in work at such place for which the truck is reasonably necessary. For the purpose of this paragraph, the term “commercial vehicle” shall include buses and sightseeing vehicles;
(f) In any public alley; Provided, that parking shall be permitted in a public alley at locations authorized by permit and upon payment of rent (except areas zoned R or SP) in accordance with law or regulations and at locations thirty feet (30 ft.) or more in width designated by posted sign; and
(g) In a manner to obstruct the entrance to any garage, parking lot or yard, coal chute, door, or gate used for service purposes.
2405.4 [REPEALED]
SOURCE: D.C. Law 15-35 published at 50 DCR 6579 (August 15, 2003); as amended by Final Rulemaking published at 53 DCR 6101 (July 28, 2006).