(a) In generalThe Commission may waive the application of section 8344 or 8468 of title 5 on a case-by-case basis for employment of an annuitant—
in a position of the Commission for which there is exceptional difficulty in recruiting or retaining a qualified employee; or
(b) ProceduresThe Commission shall prescribe procedures for the exercise of authority under this section, including—
(c) Effect of waiver
An employee as to whom a waiver under this section is in effect shall not be considered an employee for purposes of subchapter II of chapter 83, or chapter 84, of title 5.