The White House's new regulations cover medium- and heavy-duty trucks - two segments that have never been subject to emission laws. Large trucks make up only 4 percent of the nation's road traffic, but generate 20 percent of road-going emissions.
The Obama administration's new regulations will require semi trucks to cut emissions by 20 percent by 2018. Diesel-powered heavy duty vans and trucks will need to emit 15 percent fewer tailpipe emissions while their gasoline counterparts will need to cut emissions by 10 percent. Buses, RVs and garbage trucks will be subject to the same 10 percent reduction.
President Obama is expected to have the regulations finalized by July 30th, with the new rules set to begin for the 2014 model year. The regulations will extend through 2018.
1.'Large Trucks Must...' view