Lower-Emission School Bus Program Back To All Programs Lower-Emission School Bus ProgramAcerca deNewsRecursos Prop 1B School Bus Retrofit and Replacement Account Subscribe Primary Contact Diesel Hotline Correo electrónico 8666DIESEL@arb.ca.gov Teléfono (866) 634-3735 / 866 6-DIESEL Categorías Temas On-Road Heavy-Duty Vehicles, Incentives Division Mobile Source Control Division News Oct 12, 2022 New report shows how California is leading the nation in cleaning up school buses Dic 8, 2006 State’s Oldest School Bus Retires After 55 Memorable Years of Service