. While both procedures are designed to minimize the impact of aircraft noise on surrounding communities, they do so in different ways: NADP 1 (Close-in Noise Abatement):
at airports where NADP 1 is the only authorized procedure, as it is already the default expectation for ATC. ATC Preference: jeppesen canada atc para 7.6
In the world of Canadian aviation, Jeppesen Canada ATC Paragraph 7.6 Jeppesen Canada ATC Paragraph 7.6