SIP Proposal: Colorado (conditional approval of revisions addressing reasonably available control technology for sources covered by the 2008 miscellaneous metal and plastic parts coatings control techniques guidelines and major source nitrogen oxides for moderate nonattainment areas under the 2008 ozone NAAQS).
EPA determined that renewable diesel, jet fuel, heating oil, naphtha, and liquefied petroleum gas produced from canola/rapeseed oil via a hydrotreating process all meet the life-cycle greenhouse gas emissions reduction threshold of 50% required for advanced biofuels and biomass-based diesel under the Renewable Fuel Standard (RFS) program, added these pathways to the list of approved pathways in the RFS regulations, and added a new definition of “canola/rapeseed oil” to the RFS regulations.
FWS listed the Dixie Valley toad as an endangered species under the ESA and continued protections established under the Service's April 7, 2022, temporary emergency listing rule.
EPA clarified its NPDES Stormwater Phase II regulations due to recent changes made by the Census Bureau; changes are limited to clarifying that the designation criteria for small municipal separate storm sewer systems would remain the same.
EPA proposed to clarify its NPDES Stormwater Phase II regulations due to recent changes made by the Census Bureau; changes would be limited to clarifying that the designation criteria for small municipal separate storm sewer systems would remain the same.
FWS reclassified the plant Eugenia woodburyana from an endangered species to a threatened species under the ESA, due to improvements in the species’ status since its original listing in 1994, and finalized a rule issued under §4(d) of the Act to provide measures that are necessary and advisable for the conservation of the species.
SIP Proposal: Wisconsin (revisions to definition of “chemical process plants” under state PSD program).
FWS proposed to remove island bedstraw and Santa Cruz Island dudleya from the Federal List of Endangered and Threatened Plants on the basis of recovery.
FWS determined threatened species status for the Puerto Rican harlequin butterfly under the ESA and designated approximately 41,266 acres in six units in the municipalities of Arecibo, Camuy, Ciales, Florida, Isabela, Maricao, Quebradillas, Sabana Grande, San Germán, Utuado, and Yauco as critical habitat.
EPA proposed amendments to the standards of performance for secondary lead smelters that would revise the definitions of blast furnace, reverberatory furnace, and pot furnace to more closely align with the equipment definitions used in the NESHAP for secondary lead smelting; add requirements for periodic performance tests for particulate matter; and incorporate revised monitoring, recordkeeping, and reporting requirements, including electronic reporting of performance tests.