49 U.S.C. § 47525 - U.S. Code - Unannotated Title 49. Transportation § 47525. Decision about airport noise and access restrictions on certain stage 2 aircraft

(1) noise levels produced by those aircraft relative to other aircraft;

(2) the benefits to general aviation and the need for efficiency in the national air transportation system;

(3) the differences in the nature of operations at airports and the areas immediately surrounding the airports;

(4) international standards and agreements on aircraft noise; and

(5) other factors the Secretary considers necessary.