(a) 1997 PM2.5 NAAQS: The SIP submitted September 10, 2008, with a supplement submitted on June 1, 2011, is conditionally approved for Clean Air Act (CAA) elements 110(a)(2)(A), (C) only as it relates to the PSD program, (D)(i)(II) only as it relates to the PSD program, (D)(ii), (E)(ii), and (J) only as it relates to the PSD program. This conditional approval is contingent upon Maine taking actions to meet requirements of these elements within one year of conditional approval, as committed to in letters from the state to EPA Region 1 dated June 13, 2012, and June 30, 2012.

(b) 2006 PM2.5 NAAQS: The SIP submitted July 27, 2009, with a supplement submitted on June 1, 2011, is conditionally approved for CAA elements 110(a)(2)(A), (C) only as it relates to the PSD program, (D)(i)(II) only as it relates to the PSD program, (D)(ii), (E)(ii), and (J) only as it relates to the PSD program. This conditional approval is contingent upon Maine taking actions to meet requirements of these elements within one year of conditional approval, as committed to in letters from the state to EPA Region 1 dated June 13, 2012, and June 30, 2012.

(c) 2008 Ozone National Ambient Air Quality Standards (NAAQS): The 110(a)(2) infrastructure SIP submitted on June 7, 2013, is conditionally approved for Clean Air Act section 110(a)(2)(E) regarding State Boards and Conflicts of Interest. On March 1, 2018, the State of Maine committed to address these requirements.

(d) 2008 Lead NAAQS: The 110(a)(2) infrastructure SIP submitted on August 21, 2012, is conditionally approved for Clean Air Act section 110(a)(2)(E) regarding State Boards and Conflicts of Interest. On March 1, 2018, the State of Maine committed to address these requirements.

(e) 2010 Nitrogen Dioxide NAAQS: The 110(a)(2) infrastructure SIP submitted on June 7, 2013, is conditionally approved for Clean Air Act section 110(a)(2)(E) regarding State Boards and Conflicts of Interest. On March 1, 2018, the State of Maine committed to address these requirements.

(f) 2012 PM2.5 NAAQS: The 110(a)(2) infrastructure SIP submitted on July 6, 2016, is conditionally approved with respect to Clean Air Act section 110(a)(2)(E) regarding State Boards and Conflicts of Interest. On July 17, 2018, the State of Maine committed to address these requirements.

(g) 2010 Sulfur Dioxide National Ambient Air Quality Standards (NAAQS): The 110(a)(2) infrastructure SIP submitted on April 19, 2017, is conditionally approved for Clean Air Act section 110(a)(2)(E) regarding State Boards and Conflicts of Interest. On March 1, 2018, the State of Maine committed to address these requirements.

[77 FR 63232, Oct. 16, 2012, as amended at 83 FR 28160, June 18, 2018; 83 FR 49296, Oct. 1, 2018; 84 FR 18144, Apr. 30, 2019]