71 Pa.C.S. § 2401
(b) Certification of available individuals.—
(1) The Office of Administration shall certify to the appointing authority the names of the three highest-ranking available individuals on the certification of eligibles, except if any of the following apply:
(e) Waiver of consideration.— An individual on a promotion or employment list who waives consideration for promotion or appointment may not be considered among the names from which a promotion or appointment is to be made.
Cross References. Section 2401 is referred to in section 2402 of this title.