Prohibition of maximum-age requirements.
CFR · 2024-01-01 · US · Title 5
A maximum-age requirement may not be applied in either competitive or noncompetitive examinations for positions in the competitive service except as provided by: (a) Section 3307 of title 5, United States Code; or (b) Public Law 93-259 which authorizes OPM to establish a maximum-age requirement after determining that age is an occupational qualification necessary to the performance of the duties of the position.
official document · source cfr-2024 · id 5:§ 338.601