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Federal Register Notice
The National Park Service (NPS) issued a notice in the Federal Register today clarifying the definition of "substantial restoration of natural quiet" at Grand Canyon National Park.
The notice clarifies the definition used by Grand Canyon National Park for achieving substantial restoration of natural quiet as mandated by The National Parks Overflight Act of 1987 (Public Law 100-91).
Please see the attached federal register notice.
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Comment Period:
Closed
Apr 9, 2008 - May 9, 2008
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Federal Register Notice
(676.6 KB, PDF file)
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