Pursuant to the Federal Clean Air Act (CAA or Act), the Environmental Protection Agency (EPA) is proposing to approve the State Implementation Plan (SIP) submittal from Louisiana submitted on November 4, 2020 for the 2015 ozone (O3), 2006 PM<INF>2.5</INF>, 2008 ozone, 2010 nitrogen dioxide, 2010 sulfur dioxide and the 2012 PM<INF>2.5</INF> National Ambient Air Quality Standards (NAAQS).