D.C. Mun. Regs. tit. 17, § 6801
6801.1 Subject to § 6801.2, a license issued pursuant to this chapter shall expire at 12:00 midnight of March 31st of each even-numbered year.
6801.2 If the Director changes the renewal system pursuant to §4006.3 of chapter 40 of this title, a license issued pursuant to this chapter shall expire at 12:00 midnight of the last day of the month of the birthdate of the holder of the license, or other date established by the Director.
SOURCE: Final Rulemaking published at 35 DCR 955 (February 12, 1988); as amended by Notice of Final Rulemaking published at 54 DCR 8072 (August 17, 2007).