August 23, 2010 1:00 PM, EDT

NHTSA, EPA Send Proposed Rules For Truck Mileage to White House

The National Highway Traffic Safety Administration and the U.S. Environmental Protection Agency on Aug. 13 sent their proposed standards for heavy- and medium-duty trucks to the White House for review by the Office of Management and Budget.

Details of the proposal were not available at press time. OMB typically takes about 90 days to review rules, so the proposal likely will be published before the end of the year.

In May, President Obama ordered the two agencies to cooperate on new rules that would cut carbon emissions from large trucks starting in 2014. (Click here for previous story.)