National Emission Standards for Hazardous Air Pollutants From Coal- and Oil-Fired Electric Utility Steam Generating Units and Standards of Performance for Fossil-Fuel-Fired Electric Utility, Industrial-Commercial-Institutional, and Small Industrial-Commercial-Institutional Steam Generating Units
The United States (U.S.) Environmental Protection Agency (EPA or Agency) is proposing national emission standards for hazardous air pollutants (NESHAP) from coal- and oil-fired electric utility steam generating units (EGUs) under Clean Air Act (CAA or the Act) section 112(d) and proposing revised new source performance standards (NSPS) for fossil fuel-fired EGUs under CAA section 111(b). The proposed NESHAP would protect air quality and promote public health by reducing emissions of the hazardous air pollutants (HAP) listed in CAA section 112(b). In addition, these proposed amendments to the NSPS are in response to a voluntary remand of a final rule. We also are proposing several minor amendments, technical clarifications, and corrections to existing NSPS provisions for fossil fuel-fired EGUs and large and small industrial-commercial-institutional steam generating units.
California State Nonroad Engine and Vehicle Pollution Control Standards; Authorization of Tier II Marine Inboard/Sterndrive Spark Ignition Engine Emission Standards; Notice of Decision
EPA today, pursuant to section 209(e) of the Clean Air Act (Act), 42 U.S.C. 7543(e), is granting California its request for authorization to enforce its emission standards and other requirements for its second tier (``Tier II'') of emission standards for new marine inboard/sterndrive spark ignition engines.
Initiation of Scoping for an Environmental Assessment (EA)
Pursuant to the National Environmental Policy Act (NEPA) (42 U.S.C. 4321-4307h), the Council on Environmental Quality's NEPA regulations (40 CFR parts 1500-1508), and EPA's regulations for implementing NEPA (40 CFR part 6), EPA will prepare an Environmental Assessment (EA) to analyze the potential environmental impacts related to the reissuance of the National Pollutant Discharge Elimination System (NPDES) General Permit for Discharges from Construction Activities. The EA will evaluate the potential environmental impacts from the discharge of pollutants associated with stormwater runoff from construction activities greater than one acre, where EPA is the permitting authority. EPA will use the information in the EA to determine whether to prepare an Environmental Impact Statement (EIS). This notice initiates the scoping process by inviting comments from Federal, State, and local agencies, Indian tribes, and the public to help identify the environmental issues and reasonable alternatives to be examined in the EA. The scoping process will inform the preparation of the EA, which will be made available for public comment.
Determinations Concerning Need for Error Correction, Partial Approval and Partial Disapproval, and Federal Implementation Plan Regarding Texas's Prevention of Significant Deterioration Program
EPA is finalizing a correction to its previous full approval of Texas's Clean Air Act (CAA) Prevention of Significant Deterioration (PSD) program to be a partial approval and partial disapproval and is also promulgating a Federal Implementation Plan (FIP) for Texas. These actions are based on EPA's determination that at the time EPA approved Texas's PSD program, the program was flawed because the state did not address how the program would apply to all pollutants that would become newly subject to regulation in the future, including non-National Ambient Air Quality Standard (NAAQS) pollutants, among them greenhouse gases (GHGs). The partial disapproval requires EPA to promulgate a FIP and EPA is doing so to assure that GHG-emitting sources in Texas are able to proceed with plans to construct or expand.
Approval and Promulgation of Air Quality Implementation Plans; Illinois
EPA is proposing to approve a revision to the Illinois State Implementation Plan (SIP) for ozone. The State is revising its definition of volatile organic compound (VOC) to add two chemical compounds to the list of compounds that are exempt from being considered a VOC. This revision is based on EPA's 2009 determination that these two listed compounds do not significantly contribute to ozone formation.