DESCRIPTION: Comments on the United States Environmental Protection Agency’s (EPA) proposal to determine that the Phoenix-Mesa ozone nonattainment area (NAA) would have attained the 2015 ozone National Ambient Air Quality Standards (NAAQS) by its August 3, 2024 moderate attainment date, but for emissions emanating from outside the United States
TO: Michael Martucci, Acting Regional Administrator, U.S. Environmental Protection Agency, Region 9
FROM: Abirami Vijayan, Senior Attorney, Natural Resources Defense Council; Ryan Maher, Staff Attorney, Center for Biological Diversity; Chandra Rosenthal, Western Lands & Rocky Mountain Advocate, Public Employees for Environmental Responsibility; Patrick Woolsey, Staff Attorney, Sierra Club Environmental Law Program; Jonny Vasic, Executive Director, Utah Physicians for a Healthy Environment
DATE: December 19, 2025
TAGS: EPA, ozone, air pollution, public health