[Code of Federal Regulations] [Title 23, Volume 1] [Revised as of April 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 23CFR772.1] [Page 396-397] TITLE 23--HIGHWAYS CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 772_PROCEDURES FOR ABATEMENT OF HIGHWAY TRAFFIC NOISE AND CONSTRUCTION NOISE--Table of Contents Sec. 772.1 Purpose. Sec. 772.1 Purpose. 772.3 Noise standards. 772.5 Definitions. 772.7 Applicability. 772.9 Analysis of traffic noise impacts and abatement measures. 772.11 Noise abatement. 772.13 Federal participation. 772.15 Information for local officials. 772.17 Traffic noise prediction. 772.19 Construction noise. Table 1 to Part 772--Noise Abatement Criteria Appendix A to Part 772--National Reference Energy Mean Emission Levels as a Function of Speed Authority: 23 U.S.C. 109(h), 109(i); 42 U.S.C. 4331, 4332; sec. 339(b), Pub. L. 104-59, 109 Stat. 568, 605; 49 CFR 1.48(b). Source: 47 FR 29654, July 8, 1982; 47 FR 33956, Aug. 5, 1982, unless otherwise noted. [[Page 397]] To provide procedures for noise studies and noise abatement measures to help protect the public health and welfare, to supply noise abatement criteria, and to establish requirements for information to be given to local officials for use in the planning and design of highways approved pursuant to title 23 U.S.C.