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89 FR 26620

EPA proposed to revise the existing secondary sulfur dioxide NAAQS, to retain the existing secondary standards for nitrogen oxides and particulate matter, and to revise the data handling requirements for the proposed secondary sulfur oxide NAAQS.

89 FR 26115

SIP Proposal: Ohio (particulate matter rules).

Sierra Club v. Federal Energy Regulatory Commission

The D.C. Circuit denied an environmental group's petitions to review FERC's decision to grant time extensions for two developers to complete natural gas pipeline projects. The group argued FERC was too permissive in finding "good cause" to grant the extensions. The court found FERC followed its reas...

Ohio v. Environmental Protection Agency

The D.C. Circuit upheld EPA's 2022 decision to reinstate a prior waiver of federal preemption of two California regulations concerning automobile emissions under the CAA. States and fossil fuel groups challenged the regulations—a standard limiting greenhouse gas emissions and a requirement that a ...

89 FR 25810

SIP Approval: Virginia (second maintenance plan for the 1997 eight-hour ozone NAAQS in the Fredericksburg area). 

89 FR 25841

SIP Proposal: New Jersey (partial approval and partial disapproval of revisions to 2015 ozone infrastructure requirements). 

89 FR 25838

SIP Proposal: Georgia (removal of requirement for enhanced Stage I gasoline vapor recovery systems at existing gasoline dispensing facilities in Catoosa, Richmond, and Walker Counties). 

89 FR 25849

SIP Proposal: North Carolina (revision to approved motor vehicle emissions budgets).