U.S. Code » Title 49 » Subtitle SUBTITLE VII— AVIATION PROGRAMS › Part PART A— AIR COMMERCE AND SAFETY › Subpart subpart i— general › Chapter CHAPTER 401— GENERAL PROVISIONS

49 U.S.C. § 808

METHODOLOGIES USED TO ASSESS AIR TOUR NOISE.

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“Any methodology adopted by a Federal agency to assess air tour noise in any unit of the national park system (including the Grand Canyon and Alaska) shall be based on reasonable scientific methods.