US lawDistrict of ColumbiaStatutesTitle 3 — District of Columbia Boards and Commissions.Chapter 25. Plumbers. [Repealed].3-2507D.C. Code § 3-2507Employment of unlicensed person prohibited.RepealedLast amended: 1999Year: 2026Length: 1 wordsOfficial source Repealed.PreviousD.C. Code § 3-2506NextD.C. Code § 3-2508