The Environmental Protection Agency (EPA) is taking final action to approve the State Implementation Plan (SIP) submission, submitted by the State of Florida, through the Florida Department of Environmental Protection (FDEP), on January 22, 2013, to demonstrate that the State meets certain infrastructure requirements of the Clean Air Act (CAA or Act) for the 2010 1-hour nitrogen dioxide (NO<INF>2</INF>) national ambient air quality standards (NAAQS). The CAA requires that each state adopt and submit a SIP for the implementation, maintenance and enforcement of each NAAQS promulgated by EPA, which is commonly referred to as an "infrastructure" SIP. FDEP certified that the Florida SIP contains provisions that ensure the 2010 1-hour NO<INF>2</INF> NAAQS is implemented, enforced, and maintained in Florida. EPA has determined that Florida's infrastructure SIP submission, provided to EPA on January 22, 2013, satisfies certain required infrastructure elements for the 2010 1-hour NO<INF>2</INF> NAAQS.