5 CFR 831.905 : Administrative Personnel (§ 1.1 To Parts 10003-10049) — (Parts 700-714 To Parts 1002-1199) — Office Of Personnel Management (Continued) (Parts 700-714 To Parts 1002-1199) — Civil Service Regulations (Continued) (Parts 700-714 To Part 990) — Retirement (§ 831.101 To § 831.2209) — Law Enforcement Officers And Firefighters (§ 831.901 To § 831.912) — Evidence.

(a) An agency head's determination that a position is a primary position must be based solely on the official position description of the position in question, and any other official description of duties and qualifications. The official documentation for the position must establish that it satisfies the requirements defined in § 831.902.

(b) A determination under § 831.904 must be based on the official position description and any other evidence deemed appropriate by the agency head for making the determination.