Laws & Regulations
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TRI for Tribes
Information about how Toxics Release Inventory data can be used by tribal communities to help better understand and address tribal environmental and health concerns.
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Oklahoma SIP: OK 252:100 Appendix F, Secondary Ambient Air Quality Standards (Subchapter 3)
Oklahoma SIP: OK 252:100 Appendix F, Secondary Ambient Air Quality Standards (Subchapter 3)
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Oklahoma OAC 252 Chapter 100. Air Pollution Control, Subchapter 7. Permits for Minor Facilities, Part 3. Construction Permits; SIP effective June 14, 2017 (OKd21)
Oklahoma SIP: OK 252:100- 7, Part 3. Construction Permits; SIP effective 2017-06-14 (OKd21)
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Oklahoma SIP: OAC 252:100-39 PART 1 General Provisions
Oklahoma SIP: OAC 252:100-39 PART 1 General Provisions
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Oklahoma OAC 252 Chapter 100. Air Pollution Control, Subchapter 7. Permits for Minor Facilities, Part 9. Permits By Rule; SIP effective June 14, 2017 (OKd21)
Oklahoma SIP: OK 252:100- 7, Part 9. Permits By Rule; SIP effective 2017-06-14 (OKd21)
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Oklahoma OAC 252 Chapter 100. Air Pollution Control, Subchapter 24. Particulate Matter Emissions from Grain, Feed or Seed Operations, SIP effective February 27, 2009 (OKd06)
Oklahoma SIP: OAC 252:100-24-1 to 252:100-24-7
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Oklahoma OAC 252 Chapter 100. Air Pollution Control, Subchapter 7. Permits for Minor Facilities, Part 1. General Provisions, SIP effective June 14, 2017 (OKd21)
Oklahoma SIP: OK 252:100- 7, PART 1. General Provisions
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Oklahoma OAC 252 Chapter 100. Air Pollution Control, Subchapter 7. Permits for Minor Facilities, Part 4. Operating Permits, SIP effective June 14, 2017 (OKd21)
Oklahoma SIP: OK 252:100- 7, Part 4. Operating Permits; SIP effective 2017-06-14 (OKd21)
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Oklahoma SIP: OAC 252:100 Appendix C. Particulate Matter Emission Limits for Fuel-Burning Equipment
Oklahoma SIP: OAC 252:100 Appendix C. Particulate Matter Emission Limits for Buel-Burning Equipment
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Oklahoma OAC 252 Chapter 100. Air Pollution Control, Subchapter 8. Permits for Part 70 Sources, Part 1. General Provisions, SIP effective October 28, 2016 (OKd18)
Oklahoma SIP: OAC 252:100-8-1 to 252:100-8-1.5
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Oklahoma SIP: ODEQ Regulations Cross-References with Previous Codifications
Oklahoma DEQ Regulatons Cross-References with Previous Codifications
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Organizations that are No Longer EPA-Certified Refrigerant Reclaimers
Identifies companies that are no longer recognized as EPA-certified refrigerant reclaimers.
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Ozone (O3) Standards - Policy Assessments from Current Review
The policy assessment (PA) presents an analysis of the scientific basis for policy options for consideration by senior EPA management prior to rulemaking
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Former Solutia, J.F. Queeny Facility, St. Louis, Missouri - Fact Sheet, May 2019
Public Comment Period for Proposed Permit Termination
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NPDES Permit for Thunder Butte Wastewater Treatment Facility in North Dakota
Under NPDES permit number ND-0000005, the Thunder Butte Wastewater Treatment Facility on the Fort Berthold Indian Reservation in North Dakota is authorized to discharge from its wastewater treatment facility into an unnamed tributary to Clarks Creek.
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NPDES Permit for St. Ignatius South Side Wastewater Treatment Facility in Montana
Under NPDES permit MT-0029017, the Salish and Kootenai Housing Authority of the Confederated Salish and Kootenai Tribes is authorized to discharge from its wastewater treatment facility in Lake County, Montana to an unnamed tributary of Sabine Creek.