Regional Haze
State Implementation Plan (SIP)
Section 169A of the Clean Air Act makes it a national goal to prevent further deterioration and to remedy any existing visibility impairment due to man-made pollution in areas designated mandatory Class I federal areas. Class I areas are federal areas, such as national parks and wilderness areas, designated to have important value regarding visibility. These areas are listed in 40 CFR 81 Subpart D. While there are no Class I areas in Connecticut, haze is a regional problem and all States are obliged to assist in meeting the goal of attaining natural visibility in Class I areas by 2064. Connecticut fulfills its obligations by updating its implementation plan every ten years. Progress in meeting goals is assessed every five years and documented separately when not coinciding with a ten-year plan revision.
Second Planning Period
Final Submission - January 5, 2022:
RH SIP Cover Letter to EPA SIGNED (PDF)
Connecticut 2nd Regional Haze Plan-FINAL (PDF)
Response to Comments (PDF)
Comments on the December 3, 2020 draft of the Second Regional Haze Plan were received from:
U.S. Environmental Protection Agency (PDF)
National Park Service (PDF)
Environmental Review, Inc. (PDF)
Conservation Organizations (PDF)
Public Notice For Connecticut's Second Regional Haze Plan (December 3, 2020)
(As no request for hearing was made, the hearing scheduled for January 29, 2021 has been cancelled.)
Connecticut's Second Regional Haze Plan- Draft for Public Comment (December 3, 2020)
Draft as Submitted to FLM and EPA (January 15, 2020)
Five Year Progress Report (submitted July 13, 2015)
Five-Year Look Back (PDF)
Public Participation Certification (PDF)
Appendix B Status of Emissions From 167 Key Stacks (MS Excel)
Appendix C Actual and Potential Emissions of Alternative BART Units (MS Excel)
Appendix D 2011 Emissions Reduction Summary of MANE-VU Region (MS Excel)
Five-Year Look Back Report Public Hearing
Regional Haze Five-Year Look Back Public Notice (PDF)
Five-Year Look-Back Draft for Public Comment (PDF)
Appendix B Status of Emissions From 167 Key Stacks (MS Excel)
Appendix C Actual and Potential Emissions of Alternative BART Units (MS Excel)
Appendix D 2011 Emissions Reduction Summary of MANE-VU Region (MS Excel)
First Planning Period
EPA Approval and Related Correspondence
EPA Approval of CT Regional Haze SIP. July 10, 2014 (PDF)
Response to EPA Regional Haze Implementation Plan Letter, February 24, 2012 (PDF)
EPA Letter regarding Regional Haze Implementation Plan, February 15, 2012 (PDF)
EPA Response to Regional Haze SIP, February 23, 2010 (PDF)
Final Regional Haze SIP Submittal (November 18, 2009)
Letter from DEP Commissioner to EPA, November 18, 2009 (PDF)
Hearing Report (PDF)
Final Submission Regional Haze SIP Main Document (PDF 4.4mb)
Final Submission Regional Haze SIP Attachments A-GG
Public Hearing Regional Haze SIP (August 27, 2009)
Attachment I - Comments Received, including those received on the Public Hearing
CT's Draft for Public Hearing Regional Haze SIP Main Document (PDF)
CT's Draft for Public Hearing Regional Haze SIP Attachments A - FF
Draft as Submitted to FLM and EPA (February 4, 2009)
CT's Draft Regional Haze SIP Main Document (PDF)
CT's Draft Regional Haze SIP Attachments A - FF
SIP Revisions and Other Air Quality Plans
Connecticut belongs to the MANE-VU regional planning organization.
Content Last Updated on January 8, 2022