D.C. Mun. Regs. tit. 17, § 4701
4701.1 Subject to § 4701.2, a license issued pursuant to this chapter shall expire at 12:00 midnight of December 31 of each even-numbered year.
4701.2 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 in accordance with the system adopted by the Director.
SOURCE: Final Rulemaking published at 36 DCR 7159 (October 13, 1989).