23 CFR 772.5 : Highways (§ 1.1 To Parts 1345-1399) — (§ 1.1 To Parts 1345-1399) — Federal Highway Administration, Department Of Transportation (§ 1.1 To Parts 974-999) — Right-Of-Way And Environment (§ 710.101 To § 777.11) — Procedures For Abatement Of Highway Traffic Noise And Construction Noise (§ 772.1 To § 772.19) — Definitions.