49 U.S.C. § 47523
National aviation noise policy
(a) General Requirements.—
Not later than July 1, 1991 , the Secretary of Transportation shall establish by regulation a national aviation noise policy that considers this subchapter, including the phaseout and nonaddition of stage 2 aircraft as provided in this subchapter and dates for carrying out that policy and reporting requirements consistent with this subchapter and law existing as of November 5, 1990 .
(b) Detailed Economic Analysis.—
The policy shall be based on a detailed economic analysis of the impact of the phaseout date for stage 2 aircraft on competition in the airline industry, including—
(1)
the ability of air carriers to achieve capacity growth consistent with the projected rate of growth for the airline industry;
(2)
the impact of competition in the airline and air cargo industries;
(3)
the impact on nonhub and small community air service; and
(4)
the impact on new entry into the airline industry.
( Pub. L. 103–272, § 1(e) , July 5, 1994 , 108 Stat. 1288 .)