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Final rule.
This action establishes United States Area Navigation (RNAV) Routes T-480, T-482, and T-488, and amends RNAV Routes Q-140, T-206, T- 258, T-287, T-295, and T-398 in the eastern United States. These actions support Next Generation Air Transportation System (NextGen) which provides a modern RNAV route structure to improve the efficiency of the National Airspace System (NAS).