Ozone
- Final Massachusetts SIP Revision: 8-Hour Ozone Attainment Demonstration
- MassDEP Response to Comments: State Implementation Plan (SIP) for Ozone, January 2008
- Cover Letter to U.S. Environmental Protection Agency (EPA)
- Narrative
- Appendices file size 1MB
- Proposed Eastern Massachusetts Ozone Attainment SIP, June 2002
- Appendices to Proposed Eastern Massachusetts Ozone Attainment SIP, June 2002 file size 1MB
- Proposed SIP Revision for Eastern Massachusetts, January 2002
- NOx Table for Appendix A
- VOC Table for Appendix A
- Table: New Emissions Target Level Calculations
- Final 1998 Massachusetts 1-Hour Ozone Standard Attainment Submittal, July 1998
- Appendix A & Technical Modeling Discussion
- Plot Files file size 2MB
- Episode Maximum Plot Files file size 2MB
- Summary: Final 1998 Massachusetts 1-Hour Ozone Standard Attainment Submittal, July 1998
Transport
- Final Massachusetts State Implementation Plan (SIP) Revision: Interstate Air Pollution Transport, January 2008
- MassDEP Response to Comments on Final 2008 SIP Revision: Interstate Air Pollution Transport, January 2008
- Final Massachusetts State Implementation Plan (SIP): Interstate Air Pollution Transport, December 2007
Carbon Monoxide (CO)
- Revision to Carbon Monoxide (CO) SIP Maintenance Plan for Lowell, December 2009
- MassDEP Transmittal Letter to U.S. Environmental Protection Agency (EPA), April 2010
- MassDEP Response to Public Comments Received on Proposed SIP Revision to Close Lowell Monitor
- MassDEP News Release: Massachusetts Meets Federal Carbon Monoxide Standard, March 2002
- Final Revision to State Implementation Plan (SIP) for Carbon Monoxide (CO), May 2001
file size 1MB
Nitrogen Oxides (NOx)
- CAIR NOx Ozone Season Allowance - Second Excess Allocation
- CAIR NOx Ozone Season Allowance - First Excess Allocation
- 2015 CAIR NOx Ozone Season Allowance Allocations
- 2014 CAIR NOx Ozone Season Allowance Allocations
- 2013 CAIR NOx Ozone Season Allowance Allocations
- 2012 CAIR NOx Ozone Season Allowance Allocations
- 2013 CAIR NOx Ozone Season Allowance Allocations - New Unit
- 2012 CAIR NOx Ozone Season Allowance Allocations - New Unit
- 2011 CAIR NOx Ozone Season Allowance Allocations - New Unit
Regional Haze
- Final Regional Haze State Implementation Plan (SIP), August 2012 file size 3MB
file size 7MB
- Proposed Revision to Massachusetts Regional Haze State Implementation Plan (SIP), February 2012
- Massachusetts Final Regional Haze State Implementation Plan (SIP), December 2011 file size 3MB
file size 7MB
- Appendices to the Massachusetts Regional Haze SIP
- Revised Best Available Retrofit Technology (BART) Chapter, July 2009
SIP Steering Committee
- State Implementation Plan (SIP) Steering Committee
Meetings of the State Implementation Plan Steering Committee are scheduled quarterly. For additional information, contact Mark Wert at 617-292-5598.
