Search Results
Use the filters on the left-hand side of this screen to refine the results further by topic or document type.
89 FR 41648
EPA finalized the residual risk and technology review conducted for NESHAPs for the primary copper smelting major source category.
89 FR 41319
SIP Approval: Kentucky (updates to definitions rule and certain incorporation by reference dates for the Louisville Metro Air Pollution Control District).
89 FR 41321
SIP Approval: Tennessee (revisions to continuous opacity monitoring system requirements).