Title 49 › SUBTITLE VII — AVIATION PROGRAMS › PART B — AIRPORT DEVELOPMENT AND NOISE › CHAPTER 475 — NOISE › SUBCHAPTER I — NOISE ABATEMENT › § 47509
The FAA and NASA must study ways to cut noise from propeller-driven planes and rotorcraft. They must find what quieting technologies exist now, especially cost-effective ones, and decide if extra research is needed. They should involve the Department of Defense, the Department of the Interior, airtour and aviation businesses, universities, and other relevant groups. At least 280 days after August 23, 1994, FAA and NASA must send Congress a report on the study. If they find more work is needed and would substantially contribute to quiet aircraft technology, the agencies must run a research program with those partners to develop safe, effective, economical noise-reduction technology (including fixes for existing aircraft) to achieve substantially lower noise and lessen effects on national parks and other areas.
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49 U.S.C. § 47509
Title 49, Transportation
Last Updated
Sep 22, 2026
Release point: 119-110