D.C. Mun. Regs. tit. 31, § 803
803.1 At the end of each taxicab ride, the taxicab operator shall provide the passenger with a receipt containing the following information:
(a) The date and time of the trip;
(b) The distance of the trip;
(c) The trip number assigned by the PSP;
(d) The vehicle's PVIN;
(e) The number of passengers;
(f) The taximeter fare established by § 801.7, itemized to show the time and distance charges and the authorized additional charges, if any;
(g) The name and customer service telephone number of the PSP that provides the service and support for vehicle's MTS;
(h) The form of payment, including whether the payment was made by cash payment, cashless payment, voucher, or digital payment;
(i) When the form of payment is digital payment and the digital payment includes the taximeter fare, the following statement: "Your digital payment to [name of digital dispatch service and customer service telephone number or email address] may include a fee in addition to the taximeter fare shown on this receipt";
(j) When the form of payment is digital payment and the digital payment does not include the taximeter fare, the following statement: "Your payment to the driver for the taximeter fare shown on this receipt does not include any additional fee that may be charged by [name of digital dispatch service and customer service telephone number or email address]"; and
(k) The following statement: "Taxicab service in Washington, DC is regulated by the DC Taxicab Commission, 2041 Martin Luther King Jr., Ave., SE, Suite 204, Washington, DC 20020, www.dctaxi.dc.gov, dctc3@dc.gov, 1-855-484-4966, TTY 711."
803.2 When payment is made by a cash or cashless payment, a printed receipt shall be provided using the vehicle's MTS printer component. If the printer component malfunctions while printing a receipt, the operator shall provide the passenger with a handwritten receipt and the vehicle shall then be out of service until the printer component is operational.
803.3 When payment is made by digital payment, the operator shall provide the passenger with the passenger's choice of a printed receipt or an electronic
receipt sent to the passenger via email address or SMS text message not later than when the passenger exits the vehicle.
803.4 In the case of messenger or parcel delivery service, the operator shall provide the customer with a written invoice describing the article(s) transported.
SOURCE: Final Rulemaking published at 37 DCR 3595, 3613 (June 1, 1990); as amended by Final Rulemaking published at 55 DCR 3831 (April 11, 2008); as amended by Final Rulemaking published at 59 DCR 9970, 9973 (August 17, 2012); as amended by Final Rulemaking published at 60 DCR 7016 (May 17, 2013).