EPA proposed amendments to NESHAPs for coke ovens: pushing, quenching, and battery stacks, and for coke oven batteries.

SIP Approval: California (revisions to nonattainment new source review requirements for the 2015 eight-hour ozone NAAQS in the South Coast Air Quality Management District, Imperial County Air Pollution Control District, and Ventura County Air Pollution Control District).

SIP Approval: Illinois (emissions inventory requirements for the Chicago and Metro-East nonattainment areas for the 2015 ozone NAAQS).

SIP Proposal: Illinois (emissions inventory requirements for the Chicago and Metro-East nonattainment areas for the 2015 ozone NAAQS).

SIP Approval: Texas (reasonably available control technology requirements for the Dallas-Fort Worth and Houston-Galveston-Brazoria nonattainment areas for the 2008 eight-hour ozone NAAQS).

SIP Proposal: Ohio (source-specific limitation for certain process lines at Forest City Technologies, Plant 4, in Wellington, Ohio).

United States v. Mewbourne Oil Co., No. 23-cv-00654 (D.N.M. Aug. 8, 2023). A settling CAA defendant that failed to (1) comply with requirements of the federal New Source Performance Standards;, (2) submit a notice of intent and register for the New Mexico Environmental Department’s Air Quality Bureau general construction permit (GCP) for oil and gas facilities; (3) apply for a Title V operating permit; and (4) operate in accordance with provisions of the GCP and the Texas Commission on Environmental Quality Permit by Rule must pay a $5,500,000 civil penalty and spend at least $1,000,000 on a project to offset excess emissions resulting from the violations.

SIP Proposal: New Jersey (redesignation request and limited maintenance plan for the New Jersey portion of the Northeast Pennsylvania-Upper Delaware Valley Interstate Air Quality Control Region from nonattainment to attainment for the 1971 sulfur dioxide NAAQS).

SIP Proposal: Colorado (approval of enhanced monitoring element for the Denver Metro/North Front Range 2008 eight-hour ozone nonattainment area, and disapproval of contingency measure element and certain reasonably available control technology submittals).

SIP Proposal: Wyoming (interstate transport requirements for the 2015 eight-hour ozone NAAQS).