SIP Approval: Illinois (redesignation of the Chicago and Granite City areas to attainment of the 2008 lead NAAQS).
SIP Approval: Montana (East Helena lead SIP).
SIP Approval: Montana (East Helena lead SIP).
SIP Approval: Montana (East Helena lead SIP).
SIP Approval: Montana (East Helena lead SIP).
SIP Approval: Maryland (reasonably available control technology for cement kilns, revisions to and recodification of certain provisions for Portland cement manufacturing plants and internal combustion engines at natural gas compression stations, and removal of the obsolete Nitrogen Oxides Reduction and Trading Program that has been replaced by other trading programs or addressed in other regulations).
SIP Approval: Maryland (reasonably available control technology for cement kilns, revisions to and recodification of certain provisions for Portland cement manufacturing plants and internal combustion engines at natural gas compression stations, and removal of the obsolete Nitrogen Oxides Reduction and Trading Program that has been replaced by other trading programs or addressed in other regulations).
SIP Approval: Maryland (reasonably available control technology for cement kilns, revisions to and recodification of certain provisions for Portland cement manufacturing plants and internal combustion engines at natural gas compression stations, and removal of the obsolete Nitrogen Oxides Reduction and Trading Program that has been replaced by other trading programs or addressed in other regulations).
SIP Approval: Maryland (reasonably available control technology for cement kilns, revisions to and recodification of certain provisions for Portland cement manufacturing plants and internal combustion engines at natural gas compression stations, and removal of the obsolete Nitrogen Oxides Reduction and Trading Program that has been replaced by other trading programs or addressed in other regulations).
EPA approved Colorado's state plan for the regulation of existing commercial and industrial solid waste incineration units within its jurisdiction under CAA §111(d) and §129.
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