49 U.S.C. § 47502 — Noise measurement and exposure sys-

Page 1691 TITLE 49—TRANSPORTATION § 47503 AVIATION NOISE COMPLAINTS Pub. L. 112–95, title V, § 510, Feb. 14, 2012, 126 Stat. 107, provided that: ‘‘Not later than 90 days after the date of enactment of this Act [Feb. 14, 2012], each owner or op- erator of a large hub airport (as defined in section 40102(a) of title 49, United States Code) shall publish on an Internet Web site of the airport a telephone number to receive aviation noise complaints related to the air- port.’’ AIRPORT NOISE STUDY Pub. L. 106–181, title VII, § 745, Apr. 5, 2000, 114 Stat. 178, as amended by Pub. L. 106–528, § 7(a), Nov. 22, 2000, 114 Stat. 2521, provided that: ‘‘(a) IN GENERAL.—The Secretary [of Transportation] shall enter into an agreement with the National Acad- emy of Sciences to conduct a study on airport noise in the United States. ‘‘(b) CONTENTS OF STUDY.—In conducting the study, the National Academy of Sciences shall examine— ‘‘(1) the threshold of noise at which health begins to be affected; ‘‘(2) the effectiveness of noise abatement programs at airports located in the United States; ‘‘(3) the impacts of aircraft noise on communities, including schools; and ‘‘(4) the noise assessment practices of the Federal Aviation Administration and whether such practices fairly and accurately reflect the burden of noise on communities. ‘‘(c) REPORT.—Not later than 18 months after the date of the agreement entered into under subsection (a), the National Academy of Sciences shall transmit to the Secretary a report on the results of the study. Upon re- ceipt of the report, the Secretary shall transmit a copy of the report to the appropriate committees of Con- gress. ‘‘(d) AUTHORIZATION OF APPROPRIATIONS.—There is au- thorized to be appropriated such sums as may be nec- essary to carry out this section.’’ NONMILITARY HELICOPTER NOISE Pub. L. 106–181, title VII, § 747, Apr. 5, 2000, 114 Stat. 179, required the Secretary of Transportation to con- duct a study on the effects of nonmilitary helicopter noise on individuals in densely populated areas in the continental United States and develop recommenda- tions for the reduction of the effects of nonmilitary helicopter noise, focusing on air traffic control proce- dures to address helicopter noise problems and the needs of law enforcement, considering the views of rep- resentatives of the helicopter industry, and report to Congress a report on the study not later than 1 year after Apr. 5, 2000. § 47502. Noise measurement and exposure sys- tems and identifying land use compatible with noise exposure After consultation with the Administrator of the Environmental Protection Agency and United States Government, State, and inter- state agencies that the Secretary of Transpor- tation considers appropriate, the Secretary shall by regulation— (1) establish a single system of measuring noise that— (A) has a highly reliable relationship be- tween projected noise exposure and surveyed reactions of individuals to noise; and (B) is applied uniformly in measuring noise at airports and the surrounding area; (2) establish a single system for determining the exposure of individuals to noise resulting from airport operations, including noise inten- sity, duration, frequency, and time of occur- rence; and (3) identify land uses normally compatible with various exposures of individuals to noise. (Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 1284.) HISTORICAL AND REVISION NOTES Revised Section Source (U.S. Code) Source (Statutes at Large) 47502 .......... 49 App.:2102. Feb. 18, 1980, Pub. L. 96–193, § 102, 94 Stat. 50. In this section, before clause (1), the words ‘‘Not later than the last day of the twelfth month which begins after February 18, 1980’’ are omitted as obsolete. § 47503. Noise exposure maps (a) SUBMISSION AND PREPARATION.—An airport operator may submit to the Secretary of Trans- portation a noise exposure map showing the noncompatible uses in each area of the map on the date the map is submitted, a description of estimated aircraft operations during a forecast period that is at least 5 years in the future and how those operations will affect the map. The map shall— (1) be prepared in consultation with public agencies and planning authorities in the area surrounding the airport; and (2) comply with regulations prescribed under section 47502 of this title. (b) REVISED MAPS.— (1) IN GENERAL.—An airport operator that submits a noise exposure map under sub- section (a) shall submit a revised map to the Secretary if, in an area surrounding an air- port, a change in the operation of the airport would establish a substantial new noncompat- ible use, or would significantly reduce noise over existing noncompatible uses, that is not reflected in either the existing conditions map or forecast map currently on file with the Fed- eral Aviation Administration. (2) TIMING.—A submission under paragraph (1) shall be required only if the relevant change in the operation of the airport occurs during— (A) the forecast period of the applicable noise exposure map submitted by an airport operator under subsection (a); or (B) the implementation period of the air- port operator’s noise compatibility program. (Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 1284; Pub. L. 108–176, title III, § 324, Dec. 12, 2003, 117 Stat. 2542; Pub. L. 115–254, div. B, title I, § 174, Oct. 5, 2018, 132 Stat. 3228.) HISTORICAL AND REVISION NOTES Revised Section Source (U.S. Code) Source (Statutes at Large) 47503(a) ...... 49 App.:2103(a)(1). Feb. 18, 1980, Pub. L. 96–193, § 103(a), 94 Stat. 50. 47503(b) ...... 49 App.:2103(a)(2). In subsection (a), before clause (1), the words ‘‘After the effective date of the regulations promulgated in ac- cordance with section 2102 of this Appendix’’ are omit- ted as executed. The words ‘‘of an airport’’ and ‘‘at such airport’’ are omitted as surplus. The word ‘‘how’’ is substituted for ‘‘the ways, if any, in which’’ to elimi- nate unnecessary words. In clause (1), the words ‘‘plan- ning authorities’’ are substituted for ‘‘planning agen- cies’’ for consistency.