29 CFR 4001.1 : Labor (§ 0.735-1 To Parts 4908-4999) — (Part 1927 To Parts 4908-4999) — Regulations Relating To Labor (Continued) (Part 1927 To Parts 4908-4999) — Pension Benefit Guaranty Corporation (§ 4000.1 To Parts 4908-4999) — General (§ 4000.1 To § 4003.61) — Terminology (§ 4001.1 To § 4001.3) — Purpose and scope.