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August 28, 2020
Public Water System Supervision Program Revisions for the Navajo Nation
March 19, 2020
Amendments to Federal Implementation Plan for Managing Air Emissions From True Minor Sources in Indian Country in the Oil and Natural Gas Production and Natural Gas Processing Segments of the Oil and Natural Gas Sector
March 2, 2020
EPA Plan for the Federal Certification of Applicators of Restricted Use Pesticides Within Indian Country; Proposed Revisions; Notice of Availability and Request for Comment
November 21, 2019
Information Collection Request Submitted to OMB for Review and Approval; Comment Request; Federal Implementation Plan for Oil and Natural Gas Well Production Facilities, Fort Berthold Indian Reservation (Mandan, Hidatsa, and Arikara Nation)
February 28, 2018
Notification of Decision Not To Withdraw Proposed Determination To Restrict the Use of an Area as a Disposal Site; Pebble Deposit Area, Southwest Alaska
March 6, 2017
Intention To Review and Rescind or Revise the Clean Water Rule
October 7, 2016
Draft General Permit Under the Federal Indian Country Minor New Source Review Program
September 29, 2016
Federal Baseline Water Quality Standards for Indian Reservations
September 26, 2016
Treatment of Indian Tribes in a Similar Manner as States for Purposes of Section 303(d) of the Clean Water Act
Notice of Approval of Clean Air Act Permit for Navajo Generating Station
June 21, 2016
Reissuance of NPDES General Permit for Discharges From Federal Aquaculture Facilities and Aquaculture Facilities Located in Indian Country Within the Boundaries of Washington State (Permit Number WAG130000)
June 3, 2016
Federal Implementation Plan for True Minor Sources in Indian Country in the Oil and Natural Gas Production and Natural Gas Processing Segments of the Oil and Natural Gas Sector; Amendments to the Federal Minor New Source Review Program in Indian Country T
May 16, 2016
Revised Interpretation of Clean Water Act Tribal Provision
April 7, 2016
National Priorities List
March 14, 2016
Information Collection Request Submitted to OMB for Review and Approval; Comment Request; Federal Implementation Plan for Oil and Natural Gas Well Production Facilities; Fort Berthold Indian Reservation (Mandan, Hidatsa, and Arikara Nation)
January 19, 2016
Treatment of Indian Tribes in a Similar Manner as States for Purposes of Section 303(d) of the Clean Water Act
October 27, 2015
Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) or Superfund, Section 128(a); Notice of Grant Funding Guidance for State and Tribal Response Programs for FY2016
August 7, 2015
Revised Interpretation of Clean Water Act Tribal Provision
June 30, 2015
Proposed Issuance of NPDES General Permits for Wastewater Lagoon Systems Located in Indian Country in EPA Region 8
April 21, 2015
National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma
April 3, 2015
Approval of Tribal Implementation Plan and Designation of Air Quality Planning Area; Pechanga Band of Luiseño Mission Indians
March 30, 2015
Approval and Promulgation of Federal Implementation Plan for Oil and Natural Gas Well Production Facilities; Fort Berthold Indian Reservation (Mandan, Hidatsa and Arikara Nation), North Dakota; Correction
February 24, 2015
National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma
January 29, 2015
Notice of Status Update on the Proposed Determination for the Pebble Deposit Area, Southwest Alaska
January 9, 2015
Notice of Renewal of Federal Operating Permit for Grand Casino Mille Lacs
January 6, 2015
Approval of Tribal Implementation Plan and Designation of Air Quality Planning Area; Pechanga Band of Luiseño Mission Indians
December 3, 2014
Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) or Superfund, Section 128(a); Notice of Grant Funding Guidance for State and Tribal Response Programs for FY2015
September 19, 2014
Announcement To Extend the Period To Evaluate Public Comments Received on the Proposed Determination for the Pebble Deposit Area, Southwest Alaska
August 28, 2014
Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment Request; Clean Air Act Tribal Authority (Renewal)
July 21, 2014
Proposed Determination to Restrict the Use of an Area as a Disposal Site; Pebble Deposit Area, Southwest Alaska
June 24, 2014
Notice of Issuance of Minor New Source Review Construction Permit to Shooting Star Casino and Event Center
June 5, 2014
Managing Emissions From Oil and Natural Gas Production in Indian Country
May 30, 2014
Review of New Sources and Modifications in Indian Country-Amendments to the Federal Indian Country Minor New Source Review Rule
May 2, 2014
Approval and Promulgation of Implementation Plans; Swinomish Indian Tribal Community; Tribal Implementation Plan
April 25, 2014
Notice of Issuance of Minor Permit Modification to a Federal Operating Permit to NRG Reliability Solutions, LLC
April 21, 2014
Amendments to Delegation of Authority Provisions in the Prevention of Significant Deterioration Program
April 14, 2014
Applications for New Awards; Title III, Part A, Alaska Native and Native Hawaiian-Serving Institutions (ANNH) Program
March 27, 2014
Proposed Information Collection Request; Comment Request; Reporting and Recordkeeping Requirements for Clean Air Act Tribal Authority (Renewal)
February 25, 2014
General Permits and Permits by Rule for the Federal Minor New Source Review Program in Indian Country
January 14, 2014
General Permits and Permits by Rule for the Federal Minor New Source Review Program in Indian Country
December 19, 2013
Approval of Application Submitted by Eastern Shoshone Tribe and Northern Arapaho Tribe for Treatment in a Similar Manner as a State Under the Clean Air Act
October 22, 2013
Approval of Air Quality Implementation Plans; Navajo Nation; Regional Haze Requirements for Navajo Generating Station; Supplemental Proposal
October 2, 2013
Source Specific Federal Implementation Plan for Implementing Best Available Retrofit Technology for Four Corners Power Plant; Navajo Nation; Extension of Notification Deadline
September 25, 2013
Approval of Air Quality Implementation Plans; Navajo Nation; Regional Haze Requirements for Navajo Generating Station; Extension of Public Comment Period
July 11, 2013
Source Specific Federal Implementation Plan for Implementing Best Available Retrofit Technology for Four Corners Power Plant; Navajo Nation; Extension of Notification Deadline
July 9, 2013
Approval of Air Quality Implementation Plans; Navajo Nation; Regional Haze Requirements for Navajo Generating Station; Extension of Public Comment Period
July 8, 2013
Delegation of Authority to the Southern Ute Indian Tribe To Implement and Enforce National Emissions Standards for Hazardous Air Pollutants and New Source Performance Standards
Delegation of Authority to the Southern Ute Indian Tribe To Implement and Enforce National Emissions Standards for Hazardous Air Pollutants and New Source Performance Standards
June 19, 2013
Approval of Air Quality Implementation Plans; Navajo Nation; Regional Haze Requirements for Navajo Generating Station; Notice of Intent To Hold Public Hearings
June 4, 2013
Review of New Sources and Modifications in Indian Country
March 22, 2013
Approval and Promulgation of Federal Implementation Plan for Oil and Natural Gas Well Production Facilities; Fort Berthold Indian Reservation (Mandan, Hidatsa, and Arikara Nation), North Dakota
March 19, 2013
Approval of Air Quality Implementation Plans; Navajo Nation; Regional Haze Requirements for Navajo Generating Station; Extension of Comment Period
February 5, 2013
Approval of Air Quality Implementation Plans; Navajo Nation; Regional Haze Requirements for Navajo Generating Station
January 10, 2013
Review of New Sources and Modifications in Indian Country: Notice of Action Partially Granting Petition for Reconsideration and Denying Request for Administrative Stay
August 15, 2012
Approval and Promulgation of Federal Implementation Plan for Oil and Natural Gas Well Production Facilities; Fort Berthold Indian Reservation (Mandan, Hidatsa, and Arikara Nations), North Dakota
Approval and Promulgation of Federal Implementation Plan for Oil and Natural Gas Well Production Facilities; Fort Berthold Indian Reservation (Mandan, Hidatsa, and Arikara Nations), ND
July 1, 2011
Review of New Sources and Modifications in Indian Country
