“Section 3109 of title 5” substituted in text for “section 15 of the Act of August 2, 1946 (5 U.S.C. 55a)” on authority of section 7(b) of Pub. L. 89–554, Sept. 6, 1966, 80 Stat. 631, section 1 of which enacted Title 5, Government Organization and Employees.