As of December 31, 2021, the SCSC Roundtable has been terminated.

Are aircraft becoming noisier?

Due to federal and international noise standards, newly manufactured aircraft must meet increasingly stringent noise limits, which for large air carrier aircraft are currently Stage 5 in the United States and Chapter 14 internationally. Therefore, the aircraft fleet as a whole is becoming quieter. However, the regulations permit larger aircraft that carry more passengers to generate higher noise levels than their smaller counterparts.

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