76 FR 31237
SIP Approval: Pennsylvania (attainment of the 1997 eight-hour ozone NAAQS for the Pittsburgh-Beaver Valley nonattainment area)
SIP Approval: Pennsylvania (attainment of the 1997 eight-hour ozone NAAQS for the Pittsburgh-Beaver Valley nonattainment area)
SIP Approval: North Carolina/South Carolina (extension of the 1997 eight-hour ozone moderate attainment date for the bi-state Charlotte area to June 15, 2011)
SIP Approval: Mississippi (incorporation of nitrogen oxide (NOx) as a precursor to ozone).
SIP Approval: Minnesota (sulfur dioxide (SO2) emissions).
SIP Approval: Minnesota (PM emissions).
SIP Approval: Kentucky (Greenhouse Gas Tailoring Rule revision).