Environmental Protection Agency March 6, 2023 – Federal Register Recent Federal Regulation Documents

Pursuant to provisions specified by the Clean Air Act (CAA), governors of eight states submitted petitions requesting that EPA remove the 1-pound per square inch (psi) Reid vapor pressure (RVP) waiver for summer gasoline-ethanol blended fuels containing 10 percent ethanol (E10). This action acts on those requests from the Governors of Illinois, Iowa, Minnesota, Missouri, Nebraska, Ohio, South Dakota, and Wisconsin by proposing to remove the 1-psi waiver. EPA also received multiple petitions from stakeholders requesting an extension of the effective date to the summer of 2024. This action proposes to delay the effective date for one year consistent with statutory provisions. Thus, we propose an effective date for all states of April 28, 2024. This action also proposes a regulatory process by which a state may request to reinstate the 1-psi waiver.

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve revisions to the Oklahoma State Implementation Plan (SIP) submitted by the State of Oklahoma designee on December 17, 2021, and January 30, 2023. This action addresses the submittal of revisions to the Oklahoma SIP to update the incorporation by reference provision of Federal requirements under Oklahoma Administrative Code (OAC).

After consideration of public comments, the EPA is revoking a May 22, 2020 finding that it is not appropriate and necessary to regulate coal- and oil-fired electric utility steam generating units (EGUs) under Clean Air Act (CAA) section 112, and concluding, as it did in its April 25, 2016 finding, that it remains appropriate and necessary to regulate hazardous air pollutant (HAP) emissions from EGUs after considering cost.