((a)) ** Separation** Under such terms and conditions as the agency head may direct, any agency of the United States Government may separate from Government service for a specified period any officer or employee of that agency who accepts a fellowship under the program established by this chapter and is not detailed under .section 6104 of this title

((b)) ** Reemployment** Any fellow who is not a detailee, at the end of the fellowship, is entitled to be reemployed in the same manner as if covered by .section 3582 of title 5

((c)) ** Rights and benefits** Notwithstanding section 8347(), 8713, or 8914 of title 5 and in accordance with regulations of the Office of Personnel Management, an employee, while serving as a fellow who is not a detailee, is entitled to the same rights and benefits as if covered by . The Center shall reimburse the employing agency for any costs incurred under .section 3582 of title 5section 3582 of title 5o

((d)) ** Compliance with Budget Act** Funds are available under this section to the extent and in the amounts provided in appropriation Acts.