D.C. Code § 44-509
Because of the enactment of subchapter II of this chapter by D.C. Law 12-238 and the designation of the preexisting text as subchapter I, "subchapter" has been substituted for "act" twice in the first sentence of (a), twice in (e)(5), and five times in (f) and for "chapter" twice near the end of (b), in (c) and twice in (e)(1).