2 U.S.C. § 143c

Use of other library funds to make payments

In addition to amounts transferred pursuant to section 182b(e)(2) of this title , the Librarian of Congress may transfer amounts made available for salaries and expenses of the Library of Congress during a fiscal year to the applicable appropriations accounts of the United States Capitol Police in order to reimburse the Capitol Police for services provided in connection with a special event or program described in section 182b(a)(4) of this title .

( Pub. L. 110–161, div. H, title I, § 1004(f)(2) , Dec. 26, 2007 , 121 Stat. 2236 ; Pub. L. 110–178, § 6(b) , Jan. 7, 2008 , 121 Stat. 2554 ; Pub. L. 111–145, § 6(d)(1) , Mar. 4, 2010 , 124 Stat. 54 .)