The supplier’s engine lineup meets the current EPA regulations and the second step in greenhouse gas and fuel-efficiency standards, which take effect in 2017.
The third round of DERA rebates will go toward replacing or retrofitting 400 older diesel school buses in 35 states.
Several school bus-related projects are among those awarded grants to retrofit and replace old diesel vehicles and equipment.
Adomani Inc. and A-Z Bus Sales form an agreement to convert and maintain hybrid and all-electric school bus fleets.
The rebates are for replacing older school buses or — in a new option for the program this year — installing retrofit technology to reduce emissions.
In addition to reducing greenhouse gas emissions, Hammond Transportation points to lower maintenance costs as one of its reasons for buying propane buses.
The funds will offset the incremental costs for 16 propane buses for Fort Worth Independent School District.
Cummins Westport’s ISB6.7 G is a 6.7-liter mid-range natural gas engine that is based on the Cummins ISB6.7 diesel engine platform.
The Hydro-Gen Cell hydrogen cell generator is designed to improve fuel economy on vehicles running on gasoline, diesel, propane or natural gas systems, company officials said.
The EPA and NHTSA’s jointly proposed standards for medium- and heavy-duty vehicles — including school buses — would cover model years 2021 to 2027.
The district’s new Blue Bird propane school buses have a shorter 169-inch wheelbase and a 50-gallon tank to accommodate shorter runs.
A new round of grants in the Diesel Emissions Reduction Act program will be awarded for projects to reduce emissions from diesel vehicles.
Use of clean fuels and updated pollution control measures in school buses can result in fewer student absences, according to a university study.