The Alliance of Automobile Manufacturers asked the U.S. government to wait until studies are completed before it even considers the campaign initiated by 18 U.S. senators' for a 62 mpg standard for 2025 vehicles.
In April, Sen. Dianne Feinstein, D-Calif., wrote a letter that urged consideration of a recent "technical assessment" made by the Transportation Department and EPA that showed that a 62 mpg target by 2025 "is both technically feasible and cost-effective for consumers.
This letter was signed by 17 other senators. This leading trade group, whose members include General Motors, Toyota and Ford, said that fuel-economy and tailpipe-emission targets "should not be arbitrary numbers.”
The group told Transportation Secretary Ray LaHood and EPA Administrator Lisa Jackson that a 62 mpg standard may affect vehicle safety and lead to declining sales and jobs.
The Obama administration has been negotiating with automakers and the California Air Resources Board on a plan to set fuel-economy targets for 2017-25 models.
According to a 2010 Transportation Department study, reducing the weight of pickups, vans and SUVs will boost fuel economy and safety.
The department intends to update the study by September, which would be when the administration expects to propose new rules. It has commissioned for more safety research to be finished before final fuel-economy standards are implemented in the summer of 2012.