The U.S. federal government made it official Wednesday - the
Corporate Average Fuel Economy, or CAFE, program is getting tougher on light
. Automakers will have to increase average
ratings for light trucks to about 24 mpg by the 2011 model year, a more than 10-percent increase from today's standard. The standard for cars remains unchanged at 27.5 mpg.
The automakers get a break, though. For the first time, the CAFE rules include standards that vary by vehicle size, meaning that the standards for bigger trucks will be lower than for smaller trucks. This helps out
, where big trucks mean big profits.
Full details are available at the NHTSA website,