Air pollution control

National Emission Standards for Hazardous Air Pollutants: Primary Magnesium Refining Residual Risk and Technology Review

This proposal presents the results of the U.S. Environmental Protection Agency's (EPA's) residual risk and technology review (RTR) for the National Emission Standards for the Hazardous Air Pollutants (NESHAP) for Primary Magnesium Refining, as required under the Clean Air Act (CAA). Based on the results of the risk review, the EPA is proposing that risks from emissions of air toxics from this source category are acceptable and that after removing the exemptions for startup, shutdown, and malfunction (SSM), the NESHAP provides an ample margin of safety.

Publication Date: 
Friday, January 8, 2021 - 4:00am

Air Plan Partial Approval, Partial Disapproval, and Partial Conditional Approval; Arizona; Maricopa County Air Quality Department; Reasonably Available Control Technology State Implementation Plan and Surface Coating Rule

The Environmental Protection Agency (EPA) is finalizing a partial approval, partial disapproval, and partial conditional approval of revisions to the Maricopa County Air Quality Department (MCAQD or County) portion of the Arizona State Implementation Plan (SIP). This action concerns the County's demonstration regarding reasonably available control technology (RACT) requirements and negative declarations for the 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS or ``standards'') in the portion of the Phoenix-Mesa ozone nonattainment area under the jurisdiction of the MCAQD.

Publication Date: 
Thursday, January 7, 2021 - 4:00am

Review of the Ozone National Ambient Air Quality Standards

Based on the Environmental Protection Agency's (EPA's) review of the air quality criteria and the national ambient air quality standards (NAAQS) for photochemical oxidants including ozone (O<INF>3</INF>), the EPA is retaining the current standards, without revision.

Publication Date: 
Thursday, December 31, 2020 - 4:00am

Air Plan Approval; Arizona; Stationary Sources; New Source Review Updates

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Arizona Department of Environmental Quality's (ADEQ) portion of the Arizona State Implementation Plan (SIP). These revisions are primarily intended to make corrections to the ADEQ's SIP- approved rules for the issuance of New Source Review (NSR) permits for stationary sources under the Clean Air Act (CAA or Act). This proposed action will update the ADEQ's NSR rules in the SIP and correct the remaining deficiencies in the ADEQ's NSR program that we identified in final EPA rulemaking actions in 2015 and 2016.

Publication Date: 
Wednesday, December 23, 2020 - 4:00am

Air Plan Approval; Missouri; Removal of Kansas City, Missouri Reid Vapor Pressure Requirement

The Environmental Protection Agency (EPA) is proposing approval of revision to the Missouri State Implementation Plan (SIP), submitted by the Missouri Department of Natural Resources (MoDNR) on September 15, 2020. The proposed revision removes the Kansas City, Missouri low Reid Vapor Pressure (RVP) requirement which required gasoline sold in the Kansas City, Missouri area to have a seven pounds per square inch Reid Vapor Pressure from June 1 to September 15.

Publication Date: 
Wednesday, December 23, 2020 - 4:00am

Review of the National Ambient Air Quality Standards for Particulate Matter

Based on the Environmental Protection Agency's (EPA's) review of the air quality criteria and the national ambient air quality standards (NAAQS) for particulate matter (PM), the Administrator has reached final decisions on the primary and secondary PM NAAQS.

Publication Date: 
Friday, December 18, 2020 - 4:00am

Air Plan Approval; Pennsylvania; Reasonably Available Control Technology (RACT) for Volatile Organic Compounds (VOC) Under the 2008 Ozone National Ambient Air Quality Standards (NAAQS)

The Environmental Protection Agency (EPA) is approving two state implementation plan (SIP) revisions submitted by the Commonwealth of Pennsylvania. These revisions address certain reasonably available control technology (RACT) requirements, specifically those related to control technique guidelines (CTGs) for volatile organic compounds (VOCs) and the addition of regulations controlling VOC emissions from industrial cleaning solvents. These submissions are part of Pennsylvania's efforts to implement RACT for the 2008 ozone national ambient air quality standard (NAAQS).

Publication Date: 
Monday, December 14, 2020 - 4:00am

Protection of Stratospheric Ozone: Determination 36 for Significant New Alternatives Policy Program

This determination of acceptability expands the list of acceptable substitutes pursuant to the U.S. Environmental Protection Agency's (EPA) Significant New Alternatives Policy (SNAP) program. This action lists as acceptable additional substitutes for use in the refrigeration and air conditioning, foam blowing, and fire suppression sectors.

Publication Date: 
Friday, December 11, 2020 - 4:00am

Implementation of the Revoked 1997 8-Hour Ozone National Ambient Air Quality Standards; Updates to 40 CFR Part 52 for Areas That Attained by the Attainment Date; Withdrawal of Direct Final Rule

Due to the receipt of adverse comment, the Environmental Protection Agency (EPA) is withdrawing the October 9, 2020, direct final rule to update the Code of Federal Regulations (CFR) to codify its findings that nine areas in four states attained the revoked 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) by the applicable attainment dates. The EPA will address all comments received in a subsequent final rule for which the EPA will not institute a second comment period.

Publication Date: 
Wednesday, December 9, 2020 - 4:00am

Fuels Regulatory Streamlining

This action updates many of EPA's existing gasoline, diesel, and other fuel quality programs to improve overall compliance assurance and maintain environmental performance, while reducing compliance costs for industry and EPA.

Publication Date: 
Friday, December 4, 2020 - 4:00am

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