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).
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).
SIP Approval: North Carolina (updates to 2026 on-road and nonroad emissions inventories, safety margins, and motor vehicle emissions budgets).
SIP Proposal: Michigan (removal of redundant definition for "used oil").
EPA designated one new equivalent method for measuring concentrations of ozone in ambient air.
SIP Approval: California (revisions to meet extreme area requirements for the 1997 eight-hour ozone NAAQS in the Riverside Co. nonattainment area).
SIP Approval: Michigan (removal of redundant definition for "used oil").
The Fifth Circuit affirmed dismissal of a constitutional challenge brought by a pipeline company concerning a 1949 permit a local levee board granted to the company to construct and maintain two pipelines across a levee in Mayersville, Mississippi. The company argued the board violated the Contracts...