What was the purpose of FAR Part 36 regarding certificated airplane noise levels?

The purpose of FAR Part 36 is to establish noise certification standards specifically for turbojet and transport category aircraft. This regulation was implemented to address growing concerns about aircraft noise levels, particularly around airports and in urban areas. By setting specific noise level requirements, FAR Part 36 aims to ensure that these aircraft minimize their noise impact during takeoff, landing, and in flight.

This regulation plays a crucial role in balancing the operational needs of airlines and aircraft manufacturers with community noise concerns, contributing to more responsible aviation practices and fostering a better relationship between airports and surrounding communities.

Other options do not accurately reflect the specific goals of FAR Part 36. While some may center around private aircraft or broader noise reduction initiatives, they do not capture the focused aim on turbojet and transport category aircraft that is central to this part of the regulations.