AIRPORT FUNDING OF SPECIAL STUDIES OR REVIEWS.

SEC. 503. AIRPORT FUNDING OF SPECIAL STUDIES OR REVIEWS. Section 47173(a) is amended by striking “services of consultants in order to” and all that follows through the period at the end and inserting“services of consultants— “(1) to facilitate the timely processing, review, and completion of environmental activities associated with an airport development project; “(2) to conduct special environmental studies related to an airport project funded with Federal funds; “(3) to conduct special studies or reviews to support approved noise compatibility measures described in part 150 of title 14, Code of Federal Regulations; “(4) to conduct special studies or reviews to support environmental mitigation in a record of decision or finding of no significant impact by the Federal Aviation Administration; and “(5) to facilitate the timely processing, review, and completion of environmental activities associated with new or amended flight procedures, including performance-based navigation procedures, such as required navigation performance procedures and area navigation procedures.” .