Environmental reviews are a critical element in FAA's efforts to manage airspace capacity and change aircraft routing while ensuring that environmental impacts, enhancements, and protection considerations are fully and properly analyzed. We provide environmental reviews for all of FAA's airspace redesign and procedure development projects concerning air space use and air traffic.

All environmental reviews of air traffic projects are conducted under the guidelines and regulations of the National Environmental Policy Act (NEPA) and related statutory and regulatory environmental laws such as the Clean Air Act and National Historic Preservation Act, as well as internal FAA environmental regulations:

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Airspace Redesign Environmental Reviews

Metroplex Environmental Reviews

The goal of Metroplex is to ensure that, as NextGen is developed, procedures and resources are in place to ensure safe, expeditious, and cost effective methods of moving aircraft.

Performance Based Navigation (PBN) Environmental Reviews

PBN provides a basis for the design and implementation of automated flight paths as well as for airspace design and obstacle clearance. The two main components of PBN framework are Area Navigation (RNAV) and Required Navigation Performance (RNP).