Environmental Protection Agency June 26, 2020 – Federal Register Recent Federal Regulation Documents

Due to the receipt of adverse comments, the Environmental Protection Agency (EPA) is withdrawing the May 18, 2020 direct final rule approving a State Implementation Plan (SIP) revision submitted by the Commonwealth of Massachusetts. Massachusetts' SIP revision provided a negative declaration for EPA's 2016 Control Technique Guideline for the oil and gas industry. This action is being taken in accordance with the Clean Air Act.

The Environmental Protection Agency (EPA) is approving a regional haze progress report State Implementation Plan (SIP) revision submitted by the State of Wyoming on November 28, 2017. The revision addresses the requirements for states to submit periodic reports describing progress toward reasonable progress goals established for regional haze and a determination of adequacy of the State's existing regional haze SIP and federal implementation plan (FIP). The EPA is taking this action pursuant to section 110 of the Clean Air Act (CAA).

The Environmental Protection Agency (EPA) is approving the Limited Maintenance Plan (LMP) for the Columbia Falls, Kalispell and Libby nonattainment areas (NAAs) and the State's request to redesignate the Columbia Falls, Kalispell and Libby NAAs from nonattainment to attainment for the 1987 24-hour particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM10) National Ambient Air Quality Standard (NAAQS). Additionally, the EPA is determining that the Libby and Kalispell NAAs have attained the PM10 NAAQS based on monitoring data from calendar years 2016-2018. On January 31, 2011, the EPA determined that the Columbia Falls NAA attained the PM10 NAAQS. The EPA is also approving the Columbia Falls, Kalispell and Libby LMP as meeting the appropriate transportation conformity requirements. The EPA is taking this action pursuant to the Clean Air Act (CAA).