The Environmental Protection Agency (EPA) is approving a portion of the State Implementation Plan (SIP) submission, submitted by the State of Florida, through the Florida Department of Environmental Protection (FDEP), on January 22, 2013, addressing a portion of the Clean Air Act (CAA or Act) infrastructure requirements for the 2010 1- hour nitrogen dioxide (NO<INF>2</INF>) national ambient air quality standard (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 submission." Specifically, EPA is approving the portion of Florida's January 22, 2013, SIP submission addressing element B of the infrastructure requirements, which relates to monitoring requirements. EPA finds that Florida's infrastructure SIP submission, provided to EPA on January 22, 2013, satisfies the infrastructure requirements related to monitoring for the 2010 1-hour NO<INF>2</INF> NAAQS.