Energy & environment · 09/05/2022
EPA Approves North Carolina State Implementation Plan for Ozone NAAQS
The Environmental Protection Agency (EPA) has finalized approval of state implementation plan revisions for the 1997 8-hour ozone national ambient air quality standards (NAAQS) in North Carolina, covering the Great Smoky Mountains National Park, Raleigh-Durham-Chapel Hill, and Rocky Mount areas.
Original source language: Federal Register — Environmental Protection AgencyOpen original release →