Air Plan Approval; Maine; Infrastructure State Implementation Plan Requirements

The Environmental Protection Agency (EPA) is approving most elements of State Implementation Plan (SIP) submissions from Maine regarding the infrastructure requirements of the Clean Air Act (CAA or Act) for the 2008 lead (Pb), 2008 ozone, and 2010 nitrogen dioxide (NO2) National Ambient Air Quality Standards (NAAQS). In addition, EPA is approving two statutes submitted by Maine in support of its demonstration that the infrastructure requirements of the CAA have been met. Lastly, EPA is conditionally approving a sub-element of Maine's submittal relating to state boards and conflicts of interest. The infrastructure requirements are designed to ensure that the structural components of each state's air quality management program are adequate to meet the state's responsibilities under the CAA.