2 U.S.C. § 2148 - U.S. Code - Unannotated Title 2. The Congress § 2148. Administration of educational outreach and services

(A) allow the qualified entity to accept fees for any program or class described in paragraph (1) in order to cover all or a portion of the entity's costs of any supplies, honoraria, or associated expenses for the program or class; and

(B) subject to such terms as the Architect considers appropriate and necessary, grant temporary concessions to the qualified entity, or allow the qualified entity to grant temporary concessions to another person, in connection with an educational exhibit, program, class, or outreach described in paragraph (1), including concessions for food and merchandise sales that are specifically related to the educational mission involved.

(A) the National Fund for the United States Botanic Garden; and

(B) any other organization described in section 501(c) of Title 26 and exempt from tax under section 501(a) of such title that the Architect of the Capitol determines shares interests complementary to the educational mission of the United States Botanic Garden.