D.C. Code § 9-111.31
Section 629 of D.C. Law 18-370 provided: "Sec. 629. Applicability. This subtitle shall apply as of October 1, 2011; except, that sections 622 and 623(a)(2) shall apply as of the effective date of this act."
10/3/2001, D.C. Law 14-28, § 1704, 48 DCR 6981; 10/1/2002, D.C. Law 14-190, § 3602, 49 DCR 6968; 11/13/2003, D.C. Law 15-39, § 623, 50 DCR 5668; 3/13/2004, D.C. Law 15-105, § 41, 51 DCR 881; 4/13/2005, D.C. Law 15-354, §§ 84(f), 91, 52 DCR 2638; 4/8/2011, D.C. Law 18-370, § 624, 58 DCR 1008.
.