89 FR 50231
SIP Approval: West Virginia (second 10-year limited maintenance plans for the 2006 24-hour fine particulate matter NAAQS for the Charleston area and the West Virginia portion of the Steubenville-Weirton, Ohio-West Virginia area).
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89 FR 50227
SIP Approval: North Carolina (updates to 2026 on-road and nonroad emissions inventories, safety margins, and motor vehicle emissions budgets).
89 FR 49120
SIP Proposal: Michigan (removal of redundant definition for "used oil").
89 FR 49874
EPA designated one new equivalent method for measuring concentrations of ozone in ambient air.
89 FR 49815
SIP Approval: California (revisions to meet extreme area requirements for the 1997 eight-hour ozone NAAQS in the Riverside Co. nonattainment area).
89 FR 49100
SIP Approval: Michigan (removal of redundant definition for "used oil").
89 FR 49175
EPA entered into a CERCLA settlement agreement with LPC Holdings, Inc., concerning recovery of cleanup costs at the Aberdeen Contaminated Groundwater Superfund Site in Aberdeen, North Carolina.
89 FR 49175
EPA proposed to enter into individual CERCLA settlements with seven additional parties concerning the recovery of cleanup costs at Bennett Landfill Fire Site in Chester, South Carolina.
89 FR 48774
EPA determined that Alabama’s coal combustion residuals permit program does not meet the standard for approval under RCRA.