2015 Ozone NAAQS Planning Efforts

• Reclassification of Southwest Connecticut to Serious Nonattainment for the 2015 Ozone NAAQS. July 25, 2024.
• Voluntary Ozone Reclassification Request from Moderate to Serious Nonattainment for Southwest Connecticut for the 2015 Ozone NAAQS. June 13, 2024.
• 2023 Motor Vehicle Emissions Budgets for 2015 Moderate SIP - MOVES Data (download). 
• Attainment Demonstrations for Connecticut for the 2015 Ozone Standards. December 7, 2023 (webpage).
• EPA Letter to DEEP on Future Ozone Planning Efforts. November 27, 2023.
• EPA's Final Rule to Bump-Up the Greater Connecticut Nonattainment Area from Marginal to Moderate Nonattainment for the 2015 Ozone NAAQS; October 7, 2022.
• CT DEEP Comments on NYDEC's minor revisions to proposed subpart 227-3 combustion turbines rule. October 7, 2019.
• Connecticut's Comments on 6 NYCRR Part 227-3 "Ozone Season Oxides of Nitrogen Emission Limits for Simple Cycle and Regenerative Combustion Turbines" . May 17, 2019.
• Connecticut's Comments to New Jersey's Good Neighbor SIP. December 21, 2018.
• Final Good Neighbor SIP. Submitted to EPA on December 6, 2018.
• Proposed Good Neighbor SIP, September 18, 2018.  Comment Period Closed October 18, 2018.
• Connecticut's Comments to Indiana's Good Neighbor SIP.  September 24, 2018
• Connecticut's Comments to Ohio's Good Neighbor SIP.  September 18, 2018
• Connecticut's Comments to New York's Good Neighbor SIP.  September 7, 2018
• Infrastructure Requirements of the Clean Air Act.  September 7, 2018
• EPA's Transportation Conformity Guidance. June 14, 2018
• EPA Issues Final Nonattainment Area Classification Approach.  March 1, 2018
• Connecticut's comments regarding EPA's response to the designation request for the 2015 Ozone Standard. February 15, 2018
• EPA's response to Connecticut's designation request  and  EPA's responses to other states (EPA website). December 22, 2017
• Connecticut's Attorney General joins 14 other state Attorney Generals in lawsuit against EPA. Specifically, this lawsuit addresses EPA’s failure to meet a Clean Air Act deadline for the nonattainment designations regarding the 2015 ozone standard. December 5, 2017
• Withdrawal of Extension of Deadline for Promulgating Designations for the 2015 Ozone National Ambient Air Quality Standards August 2, 2017
• Governor Malloy's Response to the Delay of Designations for the 2015 Ozone NAAQS
• EPA Delays the Promulgation of Designations for the 2015 Ozone NAAQS
• Connecticut's Comments on EPA's Transport Modeling NODA
• EPA's 2023 Transport Modeling  (EPA Website)
• Connecticut's Comments on EPA's Proposed Implementation Rule
• EPA's Proposed Implementation Rule for the 2015 Ozone Standard November 2, 2016 (EPA Website)
• State and Tribal Designation Recommendations for 2015 Ozone Standard (EPA Website)
• Recommendation for Designation 2015 Ozone Standards--Letter and TSD; Oct 1, 2016

• Connecticut's Comments on EPA's Proposed Ozone NAAQS; March 16, 2015