D.C. Code § 51-104
Application of Law 16-233: Section 3 of D.C. Law 16-233 provided that the act shall apply as of January 19, 2007.
Applicability of D.C. Law 20-61: Section 11001 of D.C. Law 20-61 provided that, except as otherwise provided, the act shall apply as of October 1, 2013.