5 CFR § 731.101
The purpose of this part is to establish criteria and procedures for making determinations of suitability and for taking suitability actions regarding employment in covered positions (as defined in paragraph (b) of this section) pursuant to 5 U.S.C. 3301, E.O. 10577 (3 CFR, 1954-1958 Comp., p. 218), as amended, and 5 CFR 1.1, 2.1(a) and 5.2. Section 3301 of title 5, United States Code, directs consideration of age, health, character, knowledge, and ability for the employment sought. E.O. 10577 (codified in relevant part at 5 CFR 1.1, 2.1(a) and 5.2) directs OPM to examine suitability for competitive Federal employment. This part concerns only determinations of suitability, that is, those determinations based on a person's character or conduct that may have an impact on the integrity or efficiency of the service. Determinations made and actions taken under this part are distinct from objections to eligibles or pass overs of preference eligibles, and OPM's and agencies' decisions on such requests, made under 5 U.S.C. 3318 and 5 CFR 332.406, as well as determinations of eligibility for assignment to, or retention in, sensitive national security positions made under E.O. 10450 (3 CFR, 1949-1953 Comp., p. 936), E.O. 12968, or similar authorities.