Noise Restriction stages ?

From: (Jay Vassos-Libove)
Organization: MindSpring Enterprises
Date:         03 Nov 95 02:51:33 
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I suspect that this is a FAQ, but I'm not finding the answer through
a Lycos search...

Can someone please point me to information about the USA commercial
aviation Noise Restrictions (Stage 1, 2, 3)?  Specifically, when they
take effect, their definitions (in brief), and a list of common
engines/aircraft which meet/fail to meet the different stages.

Jay Vassos-Libove
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