by the United States government

“ In order to enable the Office of Administration to perform its functions, the President (or his designee) is authorized— (A) without regard to such other provisions of law as the President may specify which regulate the employment and compensation of persons in the Government service, to appoint and fix the pay of not more than— (i) 5 employees at rates not to exceed the rate of basic pay then currently paid for level III of the Executive Schedule of section 5314 of title 5 ”

“ Any such office to which an employee has been detailed for service to such office shall reimburse the detailing department, agency, or establishment for the pay of each employee thereof—
(1) who is so detailed, and (2) who is performing services which have been or would otherwise be performed by an employee of such office, for any period occurring during any fiscal year after 180 calendar days after the employee is detailed in such year. ”