D.C. Code § 47-1015
The property owned by The Oak Hill Cemetery Company shall be forever inalienable by the said corporation, and shall be exempted from all public assessments and taxes so long as the same shall remain dedicated to the purposes of a cemetery.
Mar. 3, 1849, 9 Stat. 775, ch. 128, § 10
enacted, Apr. 9, 1997, D.C. Law 11-254, § 2, 44 DCR 1575
1973 Ed., § 47-808.
1981 Ed., § 47-1015.