What are the regulations governing aircraft noise control?

In Washington, aircraft noise control is regulated by the Department of Transportation (DOT) through the Federal Aviation Administration (FAA). The FAA is responsible for setting national policies for noise control, and then ensuring that those policies are followed. To meet these regulations, aircraft operators must acquire Quiet Technology engines, which are designed to reduce noise. The FAA also has noise sensitivity rules, which prohibits aircraft from flying below a certain altitude over certain noise-sensitive areas. It also has guidelines that suggest operating altitudes and flight paths that will minimize the impact of aircraft noise. The FAA also sets maximum noise levels for aircraft, as well as other regulations concerning aircraft noise. Aircraft must have a Certificate of Compliance of Noise Prosecution to be allowed to operate in the United States, and this certificate must be renewed annually. The FAA also uses a Noise Compatibility Planning system to ensure that aircraft noise is kept to an acceptable level. This system combines local airport noise exposure maps and aircraft route maps to identify areas that could be affected by aircraft noise. If these areas are found, the FAA can recommend changes to aircraft operation procedures, such as changing flight paths and operating altitudes, that will reduce aircraft noise in those areas. Finally, the FAA enforces local airport noise ordinances, which typically limit the amount of noise an aircraft can make while in operation. Local ordinances may also limit the number of flight operations an aircraft can make in a given period of time. In Washington, local ordinances are enforced by the Washington State Department of Transportation.

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What are the regulations governing aircraft noise control?

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