Regulation & law · 15/09/2009
EPA Approves Ohio's Air Quality Plan for Columbus Area
The US Environmental Protection Agency (EPA) has approved Ohio's plan to maintain the 8-hour ozone National Ambient Air Quality Standard (NAAQS) in the Columbus area, which includes six counties in Ohio, through 2020, and redesignates the area as an attainment zone for ozone.
Original source language: Federal Register — All DocumentsOpen original release →