D.C. Mun. Regs. tit. 17, § 6501
6501.1 Subject to §6501.2, a license issued pursuant to this chapter shall expire at 12:00 midnight of the last day of February of each odd-numbered year.
6501.2 If the Director changes the renewal system pursuant to §4006.3 of chapter 40 of this title, a license issued pursuant to this chapter expires 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 36 DCR 6243 (September 1, 1989).