Section was classified to section 217a of former Title 40, prior to the enactment of Title 40, Public Buildings, Property, and Works, by Pub. L. 107–217, § 1, Aug. 21, 2002, 116 Stat. 1062.

Section is based on par. under heading “BOTANIC GARDEN” in act of July 8, 1935, known as the “Legislative Branch Appropriation Act, 1936”.