National Environmental Policy Act of 1969 (NEPA) - catalyst for public awareness and response to aircraft noise issues, required assessment of noise effects for airports undertaking major projects Aviation Noise Abatement Policy (ANAP) - Secretary of Transportation and FAA adopted. clarified FAAs responsibility to reduce aircraft noise, abate the impact of noise on populated areas and attain compatible land use adjacent to airports FAR Part 36-Certificated Airplane Noise Levels - mandated change in design inturbojets to help eliminate engine noise,Stages 1-4 with 4 being quietest, aircraft over 12,500# must meet Stage 4 Airport Safety and Noise Abatement Act of 1979 (ASNA) - basis for noise abatement planning at airports, required FAA to establish requirements to simplify and standardize noise compatibility planning and programs Part 150 Land Use Compatability - adopted as a result of ASNA, noise control achieved through compatible land uses around airport, developed Noise Exposure Maps (NEM) & Noise Compatibilty Programs (NCP) Airport Noise and Compatibility Act of 1990 (ANCA) - airports prohibited from adopting overly restrictive or punitive anti-noise ordinances, created Part 161 Notice and Approval of Airport Noise and Access Restrictions-placed a cap on number of Stage 2 aircraft over 75,000lbs maximum takeoff weight allowed to operate in the US 3 Goals of ANCA - 1. phase out noisier aircraft 2. place limits on local user restrictions 3. establish non-restrictive noise abatement and land use actions