D.C. Mun. Regs. tit. 17, § 699
When used in this chapter, the following term shall have the meaning ascribed:
Old Act Corporation-a corporation that:
(a) Was incorporated in the District of Columbia prior to August 6, 1962, under any of the following provisions:
(1) Sections 574 of An Act To establish a code of law for the District of Columbia, approved March 3, 1901 (31 Stat. 1280; D.C. Official Code § 29-601 et seq.);
(2) Sections 587 through 598 of An Act To establish a code of law for the District of Columbia, approved March 3, 1901 (31 Stat. 1282; D.C. Official Code § 29-701 et seq.); or
(3) Sections 599 through 604 of An Act To establish a code of law for the District of Columbia, approved March 3, 1901 (31 Stat. 1283; D.C. Official Code § 29-801 et seq.)
(b) Has not elected to be subject to the District of Columbia Nonprofit Corporation Act, approved August 6, 1962 (76 Stat. 265; D.C. Official Code § 29-301.01, et seq.).
Source: Fiscal Year 2011 Budget Support Act of 2010, effective September 24, 2010 (D.C. Law 18-223), published at 57 DCR 6242, 6278 (July 23, 2010).