D.C. Mun. Regs. tit. 31, § 808
808.1 Group riding for pre-formed groups, as defined in § 899, is permitted at all times. No operator shall refuse to transport a pre-formed group at any time. Fares for group riding shall be calculated in accordance with § 801.8.
808.2 Shared riding, as defined in § 9901.1 is authorized under this chapter only at a shared riding location designated by the Chief of the Office in an administrative issuance issued pursuant to Chapter 7. An operator shall not pick up a passenger at a designated shared riding location except at the designated taxi stand nor discharge a passenger except at the designated discharge stand. Violations of this subsection are subject to a civil fine as set forth in Chapter 20.
808.3 Where shared riding is authorized in this chapter for Nationals Park, an operator shall not pick up a passenger except at the designated taxi stand nor discharge a passenger except at the designated discharge stand. Nationals Park shall conspicuously post the designated taxi stand and discharge stands. Violations of this subsection are subject to a civil fine as set forth in Chapter 20.
SOURCE: Final Rulemaking published at 37 DCR 3595, 3617 (June 1, 1990); as amended by Final Rulemaking published at 44 DCR 7139 (November 21, 1997); as amended by Final Rulemaking published at 46 DCR 5941, 5942 (July 16, 1999); as amended by Final Rulemaking published at 55 DCR 3831 (April 11, 2008); as amended by Final Rulemaking published at 59 DCR 7504 (June 22, 2012); as amended by Final Rulemaking published at 60 DCR 7016 (May 17, 2013); as amended by Final Rulemaking published at 61 DCR 12507 (December 5, 2014); as amended by Final Rulemaking published at 63 DCR 7668 (May 20, 2016).