North Kansas City, Missouri School District has procured Thomas Built Buses’ new launched Saf-T-Liner® C2 compressed natural gas (CNG) school bus, launched in June with the Cummins Westport ISB6.7 G 6-7 liter natural gas engine.  The North American bus manufacturer says these units, which are the first Type C CNG … Continue reading US School District Takes First Step to 100% CNG Bus Fleet