The Environmental Protection Agency (EPA) is finalizing a revision to the Northern Sierra Air Quality Management District (NSAQMD or ``District'') portion of the California State Implementation Plan (SIP). In this action, we are approving a rule submitted by the NSAQMD that governs the issuance of permits for stationary sources, which focuses on the preconstruction review and permitting of major sources and major modifications under part D of title I of the Clean Air Act (CAA or ``the Act'').

The Environmental Protection Agency (EPA) is finalizing revisions to the Calaveras County Air Pollution Control District (CCAPCD) and the Mariposa County Air Pollution Control District (MCAPCD) portions of the California State Implementation Plan (SIP). In this action, we are approving two rules, one submitted by the CCAPCD and the other by the MCAPCD, governing the issuance of permits for stationary sources, focusing on the preconstruction review and permitting of major sources and major modifications under part D of title I of the Clean Air Act (CAA or ``the Act'').

The Environmental Protection Agency (EPA) has determined that the Salt Lake City, Utah and Provo, Utah Serious nonattainment areas (NAAs) attained the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) National Ambient Air Quality Standards (NAAQS) by the December 31, 2019 ``Serious'' area attainment date. The determination is based on quality-assured, quality-controlled and certified ambient air quality monitoring data from 2017 through 2019, available in the EPA's Air Quality System (AQS) database.

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of New Jersey. This revision removes from the SIP the recordkeeping, emission reporting, photochemical dispersion modeling, and inventory requirements for t-butyl acetate (TBAC) as a volatile organic compound (VOC). The revision is in accordance with the requirements of the Clean Air Act (CAA).