89 FR 23521
SIP Approval: Arizona (revisions concerning definitions for the Maricopa County Air Quality Department).
SIP Approval: Arizona (revisions concerning definitions for the Maricopa County Air Quality Department).
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.
SIP Approval: Arizona (stationary source permits).
EPA finalized amendments to NESHAPs for integrated iron and steel manufacturing facilities.
SIP Proposal: California (revisions concerning nonattainment fees in the San Diego County Air Pollution Control District).