EPA removed saccharin and its salts from the lists of hazardous constituents, wastes, and substances under CERCLA and RCRA.

EPA finalized amendments to certain renewable fuel standard program regulations that took effect July 1, 2010, based on consideration of comments received.

EPA established annual percentage standards under CAA §211(o) for cellulosic biofuel, biomass-based diesel, advanced biofuel, and renewable fuels produced or imported in calendar year 2011.

SIP Proposal: Virginia (definition of a cogeneration unit)

EPA proposed NESHAPs from coal- and oil-fired electric utility steam-generating units and revised NSPS for fossil fuel-fired units.

DOE proposed to amend its existing regulations governing compliance with NEPA, particularly its categorical exclusions.

EPA proposed to allow refiners and laboratories to use an alternative test method for olefin content in gasoline.