D.C. Mun. Regs. tit. 18, § 2402
2402.1 The Director is authorized to establish loading zones for use of commercial vehicles in any area which is zoned as a commercial or industrial district, or in front of property used as a commercial property under a nonconforming use, or at the usual shipping entrance of a large hotel or apartment building.2402.2 The Director shall have appropriate signs placed and maintained indicating the existence of an established loading zone, and stating the hours during which the provisions of this section are applicable.2402.3 All loading zones designated in accordance with this section shall remain in effect until removed by the Director.2402.4 The loading of materials shall be restricted to loading zones in each block where such zones have been designated by official signs; Provided, that this limitation shall not apply during hours when parking (but not standing) is prohibited in such block.2402.5 Unless otherwise indicated by signage, loading zones shall be occupied only so long as is reasonable for loading or unloading, and only commercial vehicles loading materials in such zones shall be parked parallel and adjacent to the curb. Where signs are posted, designated loading zones may be occupied by a particular vehicle for up to a maximum of two (2) hours.2402.6 No person shall park a vehicle in any place designated as a loading zone during the hours applying to such zone, except commercial vehicles for the purpose of loading or unloading; Provided, that a vehicle may stop momentarily at a loading zone to pick up a passenger or passengers if such stopping does not interfere with any commercial vehicle which is about to enter or waiting to enter the loading zone.2402.7 The Director is authorized to establish Curb Loading Zones, so as to permit the loading of vehicles only at curb space and to prohibit any vehicle to park, so as to load or unload adjacent to any other parked vehicles, so as to obstruct or to impede any moving traffic.2402.8 When parking in a multi-space parking meter loading zone, the operator of a motor vehicle shall, immediately after parking, pay for the amount of loading or unloading time desired. If a receipt is issued by the multi-space parking meter, the motor vehicle driver shall place the receipt face up on the passenger side of the dashboard of the vehicle so that it is clearly visible through the windshield of the vehicle. The vehicle may then occupy the space up to the time limit indicated on the receipt, but in no case for longer than two (2) hours.2402.9 No person shall park a motor vehicle in a multi-space parking meter loading zone longer than the time required to load or unload the vehicle.
2402.10 Except as provided in § 2402.11, a vehicle shall be considered illegally parked if
(a) A multi-space parking meter indicates overtime parking with respect to the parking metered loading zone in which the vehicle is parked;
(b) The expiration time indicated on the parking meter receipt displayed on the vehicle has lapsed;
(c) The vehicle does not display a receipt in the manner required by § 2402.8; or
(d) The vehicle does not display a receipt.
2402.11 Parking metered loading zones may be used without charge during times when the time for parking in the metered loading zone is unrestricted.
2402.12 Except for parking metered loading zones served by parking meters that issue receipts, the unexpired time in a parking metered loading zone, which is unoccupied, may be used by another vehicle without depositing payment. A commercial vehicle displaying a receipt issued by a multi space parking meter may park in any unoccupied parking metered loading zone that is served by a parking meter that issues receipts and that is signed to indicate that payment is required, until the expiration time shown on the parking meter receipt has lapsed.
SOURCE: Final Rulemaking published at 54 DCR 131 (January 5, 2007).