The EPA completed designations for the 2015 ozone standards.
The EPA proposed new renewable fuel volumes.
The EPA approved isobutanol as a fuel additive for blending into gasoline at levels up to 16 volume percent.
Congress approved a $92 million budget for the Leaking Underground Storage Tank (LUST) fund, which matches the previous funding level.
The EPA and Transportation Department released a proposed rule to change the Corporate Average Fuel Economy Standards.