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  2. Air Quality Implementation Plans

EPA Approved Montana Source-Specific Requirements

§52.1370 Identification of Plan

(a) Purpose and scope. This section sets forth the applicable State Implementation Plan for Montana under section 110 of the Clean Air Act, 42 U.S.C. 7410 and 40 CFR part 51 to meet national ambient air quality standards or other requirements under the Clean Air Act.

(b) Incorporation by reference. (1) Material listed in paragraphs (c), (d), and (e) of this section with an EPA approval date prior to March 1, 2015, was approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Material is incorporated as submitted by the state to EPA, and notice of any change in the material will be published in the Federal Register. Entries for paragraphs (c), (d), and (e) of this section with EPA approval dates after March 1, 2015, will be incorporated by reference in the next update to the SIP compilation.

(2) EPA Region 8 certifies that the rules/regulations provided by EPA in the SIP compilation at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated state rules/regulations which have been approved as part of the State Implementation Plan as of March 1, 2015.

(3) Copies of the materials incorporated by reference may be inspected at the Environmental Protection Agency, Region 8, 1595 Wynkoop Street, Denver, Colorado 80202-1129; Air and Radiation Docket and Information Center, U.S. Environmental Protection Agency, West Building, 1301 Constitution Ave. NW., Washington, DC 20460; and, the National Archives and Records Administration (NARA). For information on the availability of materials from the docket in the EPA Headquarters Library, please call the Office of Air and Radiation (OAR) at (202) 566-1742. For information on the availability of this material at NARA, call (202) 741-6030, or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html. Copies of the Montana regulations we have approved are also available at http://www.epa.gov/region8/air/sip.html.

EPA-approved source-specific requirements.

Title/subject State
effective date
Notice of final rule date NFR citation
(1) Cascade County
1985 December 5 Stipulation and 1985 October 20 Permit for Montana Refining Company. In the matter of the Montana Refining Company, Cascade County; compliance with ARM 16.8.811, ambient air quality standard for carbon monoxide 12/5/1985 9/7/1990 55 FR 36812
(2) Deer Lodge County
1978 November 16 Order for Anaconda Copper Smelter. In the Matter of the Petition of the Department of Health and Environmental Sciences for an Order adopting a Sulfur Oxides Control Strategy for the Anaconda Copper Smelter at Anaconda, Montana, and requiring the Anaconda Company to comply with the Control Strategy 11/16/1978 1/10/1980 45 FR 2034
(3) Flathead County
Air Quality Permit #2667-M, Dated 1/24/92. Plum Creek Manufacturing, Inc 1/24/1992 4/14/1994 59 FR 17700
Stipulation—A-1 Paving, In the Matter of Compliance of A-1 Paving, Kalispell, Montana 9/17/1993 3/19/1996 61 FR 11153
Stipulation—Equity Supply Company, In the Matter of Compliance of Equity Supply Company 9/17/1993 3/19/1996 61 FR 11153
Stipulation—Flathead Road Department #1, In the Matter of Compliance of Flathead Road Department, Kalispell, Montana 9/17/1993 3/19/1996 61 FR 11153
Stipulation—Flathead Road Department #2, In the Matter of Compliance of Flathead Road Department, Kalispell, Montana 9/17/1993 3/19/1996 61 FR 11153
Stipulation—Klingler Lumber Company, In the Matter of Compliance of Klinger Lumber Company, Inc., Kalispell, Montana 9/17/1993 3/19/1996 61 FR 11153
Stipulation—McElroy & Wilkens, In the Matter of Compliance of McElroy and Wilkens, Inc., Kalispell, Montana 9/17/1993 3/19/1996 61 FR 11153
Stipulation—Montana Mokko, In the Matter of Compliance of Montana Mokko, Kalispell, Montana 9/17/1993 3/19/1996 61 FR 11153
Stipulation—Pack and Company, In the Matter of Compliance of Pack and Company, Inc., Kalispell, Montana 9/7/1993 3/19/1996 61 FR 11153
Stipulation—Pack Concrete, In the Matter of Compliance of Pack Concrete, Inc., Kalispell, Montana 9/17/1993 3/19/1996 61 FR 11153
Stipulation—Plum Creek, In the Matter of Compliance of Plum Creek Manufacturing, L.P., Kalispell, Montana 9/17/1993 3/19/1996 61 FR 11153
(4) Gallatin County
GCC Three Forks, LLC’s Trident Plant October 18, 2019 Board Order Findings of Fact, Conclusions of Law, and Order. Setting Air Pollutant Emission Limits For Revision of the State Implementation Plan Concerning Protection of Visibility, Appendix A. 10/18/2019 6/26/2023 88 FR 41320
(5) Jefferson County
Ash Grove Cement Company’s Montana City Plant October 18, 2019 Board Order Findings of Fact, Conclusions of Law, and Order. Setting Air Pollutant Emission Limits For Revision of the State Implementation Plan Concerning Protection of Visibility, Appendix A. 10/18/2019 6/26/2023 88 FR 41320
(6) Lewis and Clark County
Total Suspended Particulate NAAQS—East Helena, ASARCO Application for Revisions of Montana State Air Quality Control Implementation Plan—Only as it applies to Total Suspended Particulate 4/24/1979 1/10/1980 45 FR 2034
Sulfur Dioxide NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Asarco Stipulation—1994 March 15 3/15/1994 1/27/1995 60 FR 5313
Sulfur Dioxide NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Exhibit A—Asarco Emission Limitations and Conditions, Asarco Incorporated, East Helena, Montana 3/15/1994 1/27/1995 60 FR 5313
Asarco Board Order—1994 March 18. In the Matter of the Application of the Department of Health and Environmental Sciences for Revision of the Montana State Air Quality Control Implementation Plan Relating to Control of Sulfur Dioxide Emissions from the Lead Smelter Located at East Helena, Montana, owned and operated by Asarco Incorporated 3/18/1994 1/27/1995 60 FR 5313
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, American Chemet Stipulation—1995 June 30 6/30/1995 6/18/2001 66 FR 32760
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, American Chemet Board Order—1995 August 4 8/4/1995 6/18/2001 66 FR 32760
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Exhibit A—American Chemet Emission Limitations and Conditions, American Chemet Corporation, East Helena, Montana. 06/10/2013 3/28/2018 83 FR 13196
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Asarco Stipulation—1996 June 11 6/11/1996 6/18/2001 66 FR 32760
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Asarco Board Order—1996 June 26 6/26/1996 6/18/2001 66 FR 32760
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Exhibit A—Asarco Emission Limitations and Conditions with attachments 1-7, Asarco Lead Smelter, East Helena, Montana 6/26/1996 6/18/2001 66 FR 32760
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Asarco Stipulation—1998 August 13 8/28/1998 6/18/2001 66 FR 32760
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Asarco Board Order—1998 August 28 8/28/1998 6/18/2001 66 FR 32760
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Asarco Stipulation—2000 July 18 9/15/2000 6/18/2001 66 FR 32760
Lead NAAQS—Board Orders, Stipulations, Exhibits, and Attachments, Asarco Board Order—2000 September 15 9/15/2000 6/18/2001 66 FR 32760
(7) Lincoln County
Board Order—1994 December 16 (Stimson Lumber). In the Matter of Compliance of Stimson Lumber Company, Libby, Montana 12/16/1994 9/30/1996 61 FR 51014
Air Quality Permit #2627-M Dated 7/25/91. Stimson Lumber Company (formerly Champion International Corp) 3/19/1993 8/30/1994 59 FR 44627
Stipulation—Stimson Lumber. In the Matter of Compliance of Stimson Lumber Company, Libby, Montana 12/16/1994 9/30/1996 61 FR 51014
(8) Missoula County
Air Quality Permit #2303M, Dated 3/20/92. Louisiana-Pacific Corporation 3/20/1992 1/18/1994 59 FR 2537
Air Quality Permit #2589M, Dated 1/23/92. Stone Container Corporation 1/24/1992 1/18/1994 59 FR 2537
(9) Rosebud County
1980 October 22 Permit for Western Energy Company. 10/22/1980 4/26/1985 50 FR 16475
Talen Montana, LLC’s Colstrip Steam Electric Station, Units 1 and 2 October 18, 2019 Board Order Findings of Fact, Conclusions of Law, and Order. Setting Air Pollutant Emission Limits For Revision of the State Implementation Plan Concerning Protection of Visibility, Appendix A. 10/18/2019 6/26/2023 88 FR 41320
(10) Silver Bow County
Air Quality Permit #1636-06 dated 8/22/96. Rhone-Poulenc Basic Chemicals Company 8/22/1996 12/6/1999 64 FR 68034
Air Quality Permit #1749-05 dated 1/5/94. Montana Resources, Inc 1/5/1994 3/22/1995 60 FR 15056
(11) Yellowstone County
Cenex June 12, 1998 Board Order and Stipulation. In the Matter of the Application of the Department of Health and Environmental Sciences for Revision of the Montana State Air Quality Control Implementation plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 6/12/1998 5/2/2002 67 FR 22168
Cenex June 12, 1998 Exhibit A (with 3/17/00 Revisions) Emission Limitations and Other Conditions 3/17/2000 5/22/2003 68 FR 27908
Cenex March 17, 2000 Board Order and Stipulation. In the Matter of the Application of the Department of Environmental Quality for Revision of the Montana State Air Quality Control Implementation Plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 3/17/2000 5/22/2003 68 FR 27908
Conoco June 12, 1998 Board Order and Stipulation. In the Matter of the Application of the Department of Health and Environmental Sciences for Revision of the Montana State Air Quality Control Implementation plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 6/12/1998 5/2/2002 67 FR 22168
Conoco June 12, 1998 Exhibit A. Emission Limitations and Other Conditions 6/12/1998 5/2/2002 67 FR 22168
Exxon June 12, 1998 Board Order and Stipulation. In the Matter of the Application of the Department of Health and Environmental Sciences for Revision of the Montana State Air Quality Control Implementation Plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 6/12/1998 5/2/2002 67 FR 22168
Exxon June 12, 1998 Exhibit A (with 3/17/00 Revisions). Emission Limitations and Other Conditions 3/17/2000 5/22/2003 68 FR 27908
Exxon March 17, 2000 Board Order and Stipulation. In the Matter of the Application of the Department of Environmental Quality for Revision of the Montana State Air Quality Control Implementation Plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 3/17/2000 5/22/2003 68 FR 27908
Montana Power June 12, 1998 Board Order and Stipulation. In the Matter of the Application of the Department of Health and Environmental Sciences for Revision of the Montana State Air Quality Control Implementation plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 6/12/1998 5/2/2002 67 FR 22168
Montana Power June 12, 1998 Exhibit A, Emission Limitations and Conditions 6/12/1998 5/2/2002 67 FR 22168
Montana Sulphur & Chemical Company June 12, 1998 Board Order and Stipulation. In the Matter of the Application of the Department of Health and Environmental Sciences for Revision of the Montana State Air Quality Control Implementation plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 6/12/1998 5/2/2002 67 FR 22168
Montana Sulphur & Chemical Company June 12, 1998 Exhibit A. Emission Limitations and Other Conditions 6/12/1998 5/2/2002 67 FR 22168
Western Sugar June 12, 1998 Board Order and Stipulation. In the Matter of the Application of the Department of Health and Environmental Sciences for Revision of the Montana State Air Quality Control Implementation plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 6/12/1998 5/2/2002 67 FR 22168
Western Sugar June 12, 1998 Exhibit A. Emission Limitations and Other Conditions 6/12/1998 5/2/2002 67 FR 22168
Yellowstone Energy Limited Partnership June 12, 1998 Board Order and Stipulation. In the Matter of the Application of the Department of Health and Environmental Sciences for Revision of the Montana State Air Quality Control Implementation Plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 6/12/1998 5/2/2002 67 FR 22168
Yellowstone Energy Limited Partnership June 12, 1998 Exhibit A (with 3/17/00 revisions) Emission Limitations and Other Conditions 3/17/2000 5/22/2003 68 FR 27908
Yellowstone Energy Limited Partnership March 17, 2000 Board Order and Stipulation. In the Matter of the Application of the Department of Environmental Quality for Revision of the Montana State Air Quality Control Implementation Plan Relating to Control of Sulfur Dioxide Emissions in the Billings/Laurel Area 3/17/2000 5/22/2003 68 FR 27908
(12) Other
JE Corette Steam Electric Station October 18, 2019 Board Order Findings of Fact, Conclusions of Law, and Order. Setting Air Pollutant Emission Limits For Revision of the State Implementation Plan Concerning Protection of Visibility, Appendix A. 10/18/2019 6/26/2023 88 FR 41320

Air Quality Implementation Plans

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Last updated on December 6, 2024
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