Regulation & law · 22/10/2021

EPA Proposes Revisions to Arizona Clean Air Plan for 2015 Ozone Standards

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Arizona State Implementation Plan (SIP) for the Phoenix-Mesa and Yuma nonattainment areas, which will update the state's base year emissions inventory requirements to meet the 2015 ozone national ambient air quality standards.