United Parcel Service has launched an initiative to use Biodiesel fuel in its ground support vehicles at its air hub in Louisville. UPS’ Biodiesel initiative in Louisville is funded in part by a $515,000 federal CMAQ grant that will assist with the purchase of Biodiesel fuel infrastructure at the airport. The infrastructure will provide a 5 percent Biodiesel blend of fuel to run 366 ground support vehicles in early 2008.

In all, says UPS, it now operates 1,629 alternative-fuel fleet vehicles worldwide, including CNG, liquefied natural gas, propane and electric and hybrid electric vehicles. UPS says it is the largest private "green" fleet in the transportation industry.