Approval and Promulgation of Implementation Plans; State of New Mexico/Albuquerque-Bernalillo County; Infrastructure and Interstate Transport SIP 2010 Nitrogen Dioxide National Ambient Air Quality Standards

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Under the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) submission from the State of New Mexico on behalf of the City of Albuquerque-Bernalillo County for the Nitrogen Dioxide (NO 2 ) National Ambient Air Quality Standards (NAAQS). The submittal addresses how the existing SIP provides for implementation, maintenance, and enforcement of the 2010 NO 2 NAAQS (infrastructure SIP or i-SIP). This i-SIP ensures that the State's SIP for Albuquerque-Bernalillo County is adequate to meet the state's responsibilities under the CAA, including the four CAA requirements for interstate transport of NO 2 emissions.