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Supplemental Notice of Proposed Rulemaking (SNPRM).

This action adds the proposed amendment of United States Area Navigation (RNAV) Route Q-409 that was inadvertently omitted from the NPRM for Docket No. FAA-2024-2352. Additionally, this action corrects the OYVAY waypoint (WP) state location to Delaware in RNAV Route Q-437. This action supports the Northeast Corridor Atlantic Coast Route (NEC ACR) Optimization Project to improve the efficiency of the National Airspace System (NAS).

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