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88 FR 70602
EPA amended its reformulated gasoline regulations to reflect the reclassification of several ozone nonattainment areas as severe for the 2008 ozone NAAQS.
88 FR 70595
EPA updated the current ozone absorption cross-section value that is used in measuring ozone concentrations.
88 FR 70616
SIP Proposal: California (nitrogen oxide and particulate matter emissions from indirect sources associated with warehouses in the South Coast Air Quality Management District).
Utah v. Environmental Protection Agency
The D.C. Circuit denied the state of Utah's motion to stay EPA's 2023 "good neighbor" rule, which aims to ensure that 23 states meet the CAA's good neighbor requirements by reducing ozone-forming emissions of nitrogen oxides from power plants and industrial facilities that contribute to compliance i...
88 FR 68529
SIP Proposal: New York (updates to existing emission statement program for stationary sources).
88 FR 68532
SIP Proposal: Colorado (stay of limited disapproval of specific provisions intended to meet reasonably available control technology requirements until June 1, 2024).
88 FR 68469
SIP Approval: Missouri (control of emissions from volatile organic liquid storage).
88 FR 68471
SIP Approval: Kentucky (redesignation to attainment and maintenance plan for the Northern Kentucky portion of the Cincinnati, Ohio-Kentucky 2015 eight-hour ozone nonattainment area).
88 FR 68465
SIP Approval: South Carolina (updates to PSD and nonattainment new source review regulations pertaining to project emissions accounting provisions).