CFR › Title 5 › Part 1330Part 1330 — Human Resources ManagementSubpart D — Performance Appraisal Certification for Pay Purposes§ 1330.401— Purpose.§ 1330.402— Definitions.§ 1330.403— System certification.§ 1330.404— Certification criteria.§ 1330.405— Procedures for certifying agency appraisal systems.