Search Results for keywords:"National Ambient Air Quality Standard"

The Environmental Protection Agency (EPA) has approved a revision to West Virginia's state implementation plan (SIP) for maintaining air quality with respect to the 1997 8-hour ozone standard in the Charleston Area, covering Kanawha and Putnam Counties. This final rule follows a review of the plan submitted by the West Virginia Department of Environmental Protection and considers public comments on the proposed rule. EPA determined that West Virginia's plan meets required criteria and will help ensure continued compliance with national air quality standards. The rule becomes effective on March 25, 2021.

The Environmental Protection Agency (EPA) approved the State of Washington's State Implementation Plan (SIP) submissions, ensuring they meet specific infrastructure requirements for air quality standards set in 2010 and 2015, particularly for sulfur dioxide and ozone. Despite some administrative issues and adverse public comments regarding resources and funding, the EPA found Washington's SIP compliant with necessary requirements. The rule, which does not impose additional federal requirements, will be effective on March 22, 2021. The SIP approval mainly applies to non-trust lands within specific Indian reservation areas as outlined by federal law.

The Environmental Protection Agency (EPA) has approved a request from the Montana Department of Environmental Quality to change the status of the "oxygenated fuels" program in Missoula's Carbon Monoxide Limited Maintenance Plan. Previously an active control measure, it will now be a contingency measure, meaning it will only be used if necessary to meet air quality standards. This decision was made after confirming that this change will not interfere with maintaining the required air quality levels. The rule becomes effective on February 18, 2025.

The Environmental Protection Agency (EPA) is approving a request from Illinois to change the air quality status of Alton Township in Madison County from nonattainment to attainment for the 2010 sulfur dioxide (SO2) National Ambient Air Quality Standard. This decision is based on proven improvements in air quality due to reduced SO2 emissions. Along with the redesignation, Illinois' maintenance plan has been approved to ensure the area continues to meet air quality standards. This final rule will take effect on January 29, 2025.

The Environmental Protection Agency (EPA) is proposing a change to Indiana's State Implementation Plan (SIP). This change involves updating Indiana's rules on emissions reporting to match the requirements set by the Clean Air Act. The new rule will require businesses in Clark and Floyd counties, which have high levels of air pollution, to report their emissions annually. Meanwhile, Lawrenceburg Township in Dearborn County and LaPorte County will no longer have to report emissions since they have met previous air quality standards.