D.C. Mun. Regs. tit. 16, r. 16-403
No person may operate or use any tow truck in a towing business unless such tow truck has been identified in the application (or amended application) for the Basic Business License Endorsement for such towing business, and unless the Director has inspected, approved, and authorized issuance of a DCRA unique alphanumeric identifier for such tow truck.
Upon approval by the Director of an application, and the payment of the prescribed fees, the Director shall issue a license authorizing the operation of each tow truck identified or described in the application.
No tow truck may be licensed unless it bears a valid inspection sticker and valid registration issued by the District of Columbia Department of Motor Vehicles.
The license shall be affixed and prominently displayed on the tow truck, in a location specified by the Director.
In case of loss, mutilation, or destruction of a license, the Director may issue a duplicate upon proof of the fact of loss and payment of the prescribed fees. A police report shall constitute proof of such loss.
D.C. Mun. Regs. tit. 16, r. 16-403