The Director and each United States marshal and law enforcement officer of the Service, before taking office, shall take an oath or affirmation to faithfully execute the duties of that office.
A prior section 563, added Pub. L. 89–554, § 4(c), Sept. 6, 1966, 80 Stat. 619, specifically stated the oath of office to be taken, prior to repeal by Pub. L. 100–690, § 7608(a)(1). See section 561(h) of this title.