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89 FR 23521

SIP Approval: Arizona (revisions concerning definitions for the Maricopa County Air Quality Department). 

89 FR 23840

EPA finalized proposed amendments to remove the force majeure exemption for pressure relief devices and emergency flaring, incorporate clarifications for the degassing requirements for floating roof storage vessels, and address other corrections and clarifications for various NESHAPs. 

89 FR 22963

SIP Approval: Arizona (stationary source permits). 

89 FR 23294

EPA finalized amendments to NESHAPs for integrated iron and steel manufacturing facilities. 

89 FR 22648

SIP Proposal: California (revisions concerning nonattainment fees in the San Diego County Air Pollution Control District). 

Texas v. United States Department of Transportation

A district court granted summary judgment for the state of Texas in a challenge to the Federal Highway Administration's (FHwA's) 2023 rule requiring states to measure, report, and set declining targets for the amount of carbon dioxide emitted by vehicles using the interstate and national highway sys...

89 FR 22363

SIP Proposal: Oregon (revisions to stationary source permitting rules). 

89 FR 22086

EPA gave notice that the volatile organic compounds and nitrogen oxides motor vehicle emissions budgets in the submitted 2015 ozone moderate reasonable further progress plan for Allegan, Berrien, and Muskegon Counties are adequate for conformity purposes. 

89 FR 22087

EPA updated a portion of the outer continental shelf air regulations for which North Carolina is the designated corresponding onshore area.