76 FR 17343
SIP Approvals: Nevada (attainment of the 1997 eight-hour ozone NAAQS for the Clark County nonattainment area)
SIP Approvals: Nevada (attainment of the 1997 eight-hour ozone NAAQS for the Clark County nonattainment area)
SIP Approvals: Nebraska (PSD preconstruction permitting program).
SIP Approvals: Montana (attainment of the 1997 annual fine PM NAAQS for the Libby nonattainment area)
SIP Approvals: Missouri (idling of heavy-duty diesel vehicles).
SIP Approvals: Indiana/Kentucky (attainment of the annual average 1997 fine PM NAAQS for the bi-state nonattainment area).
SIP Approval: California (nitrogen oxide, carbon monoxide, sulfur dioxide (SO2), and particulate matter (PM) emissions for the San Joaquin Valley unified air pollution control district)
SIP Approvals: California (definition of terms for the Imperial County, Kern County, and Ventura County air pollution control districts).
EPA entered into a proposed administrative settlement under CERCLA that requires the settling party to pay U.S. response costs incurred at the B&B Manufacturing Superfund site in Mobile, Alabama.
EPA entered into a proposed settlement agreement in WildEarth Guardians v. Jackson, No. 3:10-cv-04603-WHA (N.D. Cal.), that establishes a deadline for the Agency to take action on NAAQS for Arizona, Nevada, Pennsylvania, and Tennessee.
EPA designated four new equivalent methods for monitoring ambient air quality.