National parks

Approval and Promulgation of Implementation Plans; State of Utah; Salt Lake City and Provo, Utah PM2.5

The Environmental Protection Agency (EPA) is proposing the redesignation of the Salt Lake City, Utah and Provo, Utah nonattainment areas (NAAs) to attainment for the 2006 24-hour fine particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 microns (PM<INF>2.5</INF>) National Ambient Air Quality Standard (NAAQS), and also acting on multiple related State Implementation Plan (SIP) submissions.

Publication Date: 
Friday, November 6, 2020 - 4:00am