77 FR 3681
SIP Proposal: Minnesota (regional haze plan).
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77 FR 3417
SIP Proposal: Massachusetts (attainment of the one-hour ozone NAAQS for the serious Springfield nonattainment area for 2007-2009 and 2008-2010).
77 FR 3220
SIP Proposal: Massachusetts (attainment of the 1997 eight-hour ozone NAAQS for the Springfield moderate nonattainment area for 2007-2009 and 2008-2010).
77 FR 3223
SIP Proposal: Delaware/New Jersey/Pennsylvania (attainment of the 1997 annual fine PM NAAQS for the Philadelphia-Wilmington nonattainment area for 2007-2009 and 2008-2010).
77 FR 3211
SIP Proposal: Delaware (nitrogen oxide emissions at petroleum refineries).
77 FR 3720
SIP Proposal: Connecticut/New Jersey/New York (attainment determinations for the CT/NJ/NY one-hour and 1997 eight-hour ozone nonattainment areas).
77 FR 3386
SIP Approval: Pennsylvania (low-emission vehicle program for light-duty vehicles).
77 FR 3611
SIP Approval: North Carolina (maintenance plan for the Triad Area through 2018).
77 FR 3144
SIP Approval: Missouri (conditional approval of volatile organic compound revisions).
77 FR 3147
SIP Approval: Delaware/New Jersey/Pennsylvania (attainment of the 1997 annual fine particulate matter (PM) NAAQS for the Philadelphia-Wilmington nonattainment area for 2007-2009 and 2008-2010).