Thomas Built Buses, the school bus manufacturing unit of Daimler Trucks North America, has just received its first order for new clean diesel buses. Montgomery County in Maryland has ordered 59 new Saf-T-Liner HDX school buses equipped with selective catalytic reduction (SCR) systems. The SCR system eliminates most nitrogen oxide emissions and allow the buses to meet the 2010 emissions standards for heavier trucks.
Clean Diesel Bus Program
San Franciscans and neighboring Bay Area residents should be breathing a little easier these days. The Metropolitan Transportation Commission (MTC), the Bay Area Air Quality Management District and the local transit systems are nearly finished retrofitting over 1,700 diesel buses with exhaust filters.