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Air Plan Approval; Oregon; Update to Materials Incorporated by Reference
The Environmental Protection Agency (EPA) is updating materials incorporated by reference (IBR) into the Oregon State Implementation Plan (SIP). The regulations affected by this update were previously submitted by the Oregon Department of Environmental Quality (ODEQ) and approved by the EPA. In this action the EPA is also notifying the public of...
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Air Plan Approval; NC: Readoption of Air Quality Rules and Removal of the Oxygenated Gasoline Rules
The Environmental Protection Agency (EPA) is taking final action to approve a State Implementation Plan (SIP) revision submitted by the North Carolina Department of Environmental Quality, Division of Air Quality (DAQ), on March 21, 2018, readopting and amending several air quality rules, and requesting to remove the rules for the oxygenated...
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Air Plan Approval; North Carolina; Miscellaneous Rules
The Environmental Protection Agency (EPA) is taking final action to approve changes to the North Carolina State Implementation Plan (SIP) submitted by the State of North Carolina, through the North Carolina Department of Environmental Quality (NCDEQ), through letters dated April 4, 2017, August 22, 2017, and September 28, 2018. These SIP...
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Air Plan Approval; Kentucky; Regional Haze Plan and Prong 4 (Visibility) for the 1997 Ozone, 2010 NO2
The Environmental Protection Agency (EPA) is taking four actions regarding the Kentucky State Implementation Plan (SIP). Specifically, EPA is approving Kentucky's November 16, 2018, SIP submittal seeking to change reliance from the Clean Air Interstate Rule (CAIR) to the Cross-State Air Pollution Rule (CSAPR) for certain regional haze...
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Air Plan Approval; ID, Kraft Pulp Mill Rule Revisions
The Environmental Protection Agency (EPA) is taking final action to approve revisions to Idaho's State Implementation Plan (SIP) submitted by the Idaho Department of Environmental Quality (IDEQ) on November 2, 2018. The submitted revisions update Idaho's rules by removing obsolete and duplicative requirements as well as requirements less...
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Air Quality State Implementation Plans: Arizona; Approval and Conditional Approval of State Implementation Plan Revisions; Maricopa County Air Quality Department; Stationary Source Permits
The Environmental Protection Agency (EPA) is finalizing revisions to the Maricopa County Air Quality Department's (MCAQD) portion of the state implementation plan (SIP) for the State of Arizona. We are finalizing full approval of Rules 210, 220, 240, and 241, and conditional approval of Rules 100 and 200. The revisions update the MCAQD's New...
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Outer Continental Shelf Air Regulations; Consistency Update for Delaware
The Environmental Protection Agency (EPA) is updating a portion of the Outer Continental Shelf (OCS) Air Regulations. Requirements applying to OCS sources located within 25 miles of states' seaward boundaries must be updated periodically to remain consistent with the requirements of the corresponding onshore area (COA), as mandated by section...
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Air Plan Approval; Connecticut; Motor Vehicle Inspection and Maintenance Program Certification
The Environmental Protection Agency (EPA) is approving the motor vehicle inspection and maintenance (I/M) program certifications contained within State Implementation Plan (SIP) revisions submitted by the State of Connecticut. The SIP revisions are for the Greater Connecticut and the Connecticut portion of the New York-Northern New Jersey-Long...
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Air Plan Approval; Massachusetts; Regional Haze Five-Year Progress Report State Implementation Plan
The Environmental Protection Agency (EPA) is approving Massachusetts' Regional Haze Five-Year Progress Report, submitted on February 9, 2018 as a revision to its State Implementation Plan (SIP). This SIP revision addresses requirements of the Clean Air Act (CAA) and EPA's rules that require states to submit periodic reports describing the...
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Approval and Promulgation of Air Quality Implementation Plans; North Dakota; Revisions to Air Pollution Control Rules
The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions submitted by the State of North Dakota on January 28, 2013, and November 11, 2016. The revisions include amendments to North Dakota's general provisions, permit to construct, prevention of significant deterioration (PSD) of air quality, oil and gas,...
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Air Plan Approval; KY; Minor Sources Infrastructure Requirement for the 2012 PM2.5
The Environmental Protection Agency (EPA) is approving portions of three State Implementation Plan (SIP) submissions, submitted by the Commonwealth of Kentucky, Energy and Environment Cabinet, Department for Environmental Protection, through the Kentucky Division for Air Quality (KDAQ) on April 26, 2013 (two submissions), and February 8, 2016....
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Approval and Promulgation of Air Quality State Implementation Plans; California; Plumas County; Moderate Area Plan for the 2012 PM2.5
The Environmental Protection Agency (EPA) is approving most elements of state implementation plan (SIP) revisions submitted by California to address Clean Air Act (CAA or ``Act'') requirements for the 2012 annual fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS or ``standards'') in the Plumas County...
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Air Plan Approval; South Carolina; Update to Materials Incorporated by Reference
The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the South Carolina state implementation plan (SIP). The regulations affected by this update have been previously submitted by South Carolina and approved by EPA. This update affects the materials that are available for public...
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Approval and Promulgation of Air Quality Implementation Plans; Wyoming; Revisions to Regional Haze State Implementation Plan
The Environmental Protection Agency (EPA) is approving a source-specific revision to the Wyoming State Implementation Plan (SIP) that provides an alternative to Best Available Retrofit Technology (BART) for Unit 3 at the Naughton Power Plant (``the SIP revision'') that is owned and operated by PacifiCorp. The EPA finds that the BART alternative...
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Air Plan Approval; Massachusetts; High Occupancy Vehicle Lanes
The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the Commonwealth of Massachusetts. This revision provides for the Massachusetts Department of Transportation (MassDOT) to construct and operate specified transit facilities and high occupancy vehicle (HOV) lanes established therein....
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Review of the Primary National Ambient Air Quality Standards for Sulfur Oxides
Based on the Environmental Protection Agency's (EPA's) review of the air quality criteria addressing human health effects and the primary national ambient air quality standard (NAAQS) for sulfur oxides (SO<INF>X</INF>), the EPA is retaining the current standard, without revision.
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Air Plan Approval; GA: Emission Reduction Credits
The Environmental Protection Agency (EPA) is taking final action to approve changes to the Georgia State Implementation Plan (SIP) to revise the emission reduction credits (ERC) regulation. EPA is approving portions of the SIP revision submitted by the State of Georgia, through the Georgia Department of Natural Resources' Environmental...
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Air Plan Approval; Michigan; Revisions to Part 1 General Provisions Rules
The Environmental Protection Agency (EPA) is approving a request submitted by the Michigan Department of Environmental Quality (MDEQ) on December 12, 2017, and supplemented on August 9, 2018, as a revision to Michigan's state implementation plan (SIP). The SIP submission incorporates several revisions to Michigan's Air Pollution Control Rules...
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Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2012 PM2.5
The Environmental Protection Agency (EPA) is approving elements of the State Implementation Plan (SIP) submission from Michigan regarding the infrastructure requirements of section 110 of the Clean Air Act (CAA) for the 2012 annual fine particulate matter (PM<INF>2.5</INF>) National Ambient Air Quality Standard (NAAQS or standard). The...
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Air Plan Approval; Michigan; Michigan Minor New Source Review
The Environmental Protection Agency (EPA) is approving the rescission of Michigan rule 221 from the Michigan state implementation plan (SIP). Rule 221 exempted sources that had significant net emission increases of sulfur dioxide, particulate matter, and carbon monoxide from offset requirements. Michigan rescinded this rule effective November...