EPA announced its intent to redesignate portions of Westmoreland County and Cambria County, Pennsylvania, to “nonattainment” for the 2010 sulfur dioxide NAAQS.
SIP Approval: Maryland (revisions to attainment plan for the Anne Arundel County and Baltimore County sulfur dioxide nonattainment area).
SIP Approval: Pennsylvania (partial approval and partial disapproval of 2020 revision to attainment plan for the Indiana, Pennsylvania, 2010 sulfur dioxide nonattainment area).
SIP Approval: Oklahoma (interstate visibility transport requirements for the 2015 ozone, 2010 sulfur dioxide, and 2012 fine particulate matter NAAQS).
SIP Approval: Michigan (base-year emissions inventory requirements for the St. Clair County 2010 sulfur dioxide nonattainment area).
SIP Proposal: Michigan (base-year emissions inventory for the St. Clair County 2010 sulfur dioxide nonattainment area).
SIP Proposal: Michigan (attainment of the 2010 sulfur dioxide NAAQS in the St. Clair nonattainment area).
EPA denied petitions for reconsideration and/or administrative stay of the air quality designations for the 2010 one-hour sulfur dioxide primary NAAQS in portions of Freestone and Anderson counties, Rusk and Panola counties, and Titus County, Texas.
SIP Proposal: Kansas and Nebraska (interstate transport requirements for the 2010 sulfur dioxide NAAQS).
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