D.C. Mun. Regs. tit. 31, § 814
814.1 The vehicle identification card (DCTC license) issued under § 31(d) of the License Act (D.C. Official Code § 47-2829(d) (2001)) shall be displayed at all times in the taxicab for which it is issued.
814.2 The vehicle identification card shall be carried in the taxicab and made available for inspection upon the request of any hack inspector or law enforcement personnel.
814.3 The operator identification card (face) issued to the driver pursuant to § 31(e) of the License Act (D.C. Official Code § 47-2829(e)(1) (2001)) shall be displayed in a bracket or receptacle of a type approved by the Commission and shall be firmly attached to the right sun visor so as to be visible to any passenger in the vehicle.
814.4 At all times when the operator is not in the vicinity of the taxicab, the operator shall remove the identification card from the vehicle. For the purposes of this section "vicinity" means not more than twenty-five feet (25 ft.) from the taxicab.
814.5 There shall be displayed in a suitable frame on the right side of the back of the front seat of each taxicab, in a position clearly visible to passengers, the passenger rights which shall display the tag number, the company, association, fleet or owner's name, and the taxicab number.
814.6 [Repealed] D.C. Law 9-218, 40 DCR 556, 557 (January 22, 1993).
SOURCE: Final Rulemaking published at 37 DCR 3595, 3619 (June 1, 1990); as amended by § 3 of the Taxicab Commercial Advertising Amendment Act of 1992, D.C. Law 9-218 (D.C. Act 9-438) published at 40 DCR 556, 557 (January 22, 1993); Final Rulemaking published at 40 DCR 7295 (October 15, 1993); and Final Rulemaking published at 41 DCR 1855 (April 8, 1994).