50 U.S.C. § 523 : US Code - Section 523: Employment of civilian personnel

      The Secretary of the Air Force is authorized to employ such
    civilian personnel as may be necessary to carry out the purposes of
    this subchapter without regard to the limitation on maximum number
    of employees imposed by section 14(a) (!1) of the Federal Employees
    Pay Act of 1946 (5 U.S.C. 947(g)).