28 C.F.R. § 0.145
The Director of the Federal Bureau of Investigation, the Director of the Bureau of Prisons, the Commissioner of Federal Prison Industries, the Commissioner of Immigration and Naturalization, the Administrator of the Drug Enforcement Administration, the Director of the Bureau of Alcohol, Tobacco, Firearms, and Explosives, the Director of the Office of Justice Assistance, Research and Statistics and the Director of the U.S. Marshals Service as to their respective jurisdictions, and the Assistant Attorney General for Administration, as to all other organizational units of the Department (including U.S. Attorneys), may, subject to any regulations which the Attorney General may prescribe, authorize overtime pay (including additional compensation in lieu of overtime of not less than 10 percent nor more than 25 percent pursuant to section 5545(c)(2) of title 5, U.S. Code) for such positions as may be designated by them.
28 C.F.R. §0.145