Read more: Massachusetts MAPC Releases Electric School Bus Roadmap
PERC Celebrates Earth Day, Propane’s Role in Clean Resilient Fleets
Propane autogas and renewable propane provide an alternative fuel source to electricity for your school transportation needs. This Earth Day, PERC highlights the fuel type’s ability to reduce NOx emissions by 96%.

A propane bus can run on either traditional propane autogas or renewable propane to help keep NOx emissions down while meeting CARB’s emission standards.
Photo: PERC
Today, the Propane Education & Research Council (PERC) highlights propane autogas and renewable propane as key solutions for cutting emissions and delivering reliable energy for Earth Day.
The Benefits of Propane
Propane is a safe, clean, readily available energy source that produces 52% fewer greenhouse gas emissions than the electric grid. It supports the environment and communities striving for more sustainable, resilient energy.
“Too often the energy conversation turns toward a choice between sustainability and reliability; propane proves that you don’t have to choose,” said Tucker Perkins, president and CEO of PERC. “With extreme weather events on the rise, we need solutions that are as resilient as they are clean. Propane is widely available and rises to the challenge of reducing carbon emissions and keeping our planet clean and our communities up and running.”
Additionally, propane autogas is non-toxic and does not contaminate soil or water, making it a safe choice for fleets and the communities in which they operate.
Adaptable Engines for Renewable Propane
The ultra-low nitrogen oxide (NOx) propane autogas engines available today reduce harmful NOx emissions by up to 96%. They are certified to the California Air Resource Board’s 0.02 grams per brake horsepower-hour standard.
These engines are cleaner when they operate with renewable propane. Made from renewable feedstocks, renewable propane offers the same benefits as conventional propane but with even lower emissions.
Renewable propane can be used without modifications in any current propane autogas engine or infrastructure, providing another smart solution for preventing zero emissions.
More Alternative Fuels

Alt-Fuel Moves: Electric Bus Rollouts, Bidirectional Charging & Propane Growth
See which fleets are adding electric and propane school buses as districts and operators invest in charging infrastructure, bidirectional technology, and alternative-fuel expansion.
Read More →
Nobody Told Diesel Prices They Were Supposed to Come Down
With diesel prices surging, school bus fleets have new reason to stress-test fuel costs, consider diversification, and calculate what each route really costs to operate.
Read More →
Why Gasoline School Buses Are Making a Comeback
Gasoline is gaining ground in full-size school buses. See how today’s options stack up against diesel on cost, maintenance, emissions, performance, and more.
Read More →
EPA Opens $180M DERA Funding Round for Diesel Upgrades
The 2026 Diesel Emissions Reduction Act program seeks applications from eligible organizations to accelerate the retirement of legacy diesel vehicles.
Read More →
The Secret Life of an Electric School Bus Battery
Batteries change throughout years of daily routes, but degradation doesn’t necessarily mean the end. Here’s what operators should know about performance, safety, and second life.
Read More →
CALSTART and Forth Combine to Form Catalyst Mobility
The new name represents a renewed vision for the nonprofit focused on advancing clean, equitable, and affordable transportation solutions that move people and goods.
Read More →
Alt-Fuel Moves: New Buses, Charging Hubs & Real-World EV Testing
Propane and electric school bus deployments continue to grow as districts add new vehicles, expand charging infrastructure, and gather more real-world operating data.
Read More →
Fewer Electric School Bus Models Reshape the U.S. Market
WRI’s latest buyer’s guide points to a consolidating electric school bus market, but fewer options may reflect a maturing industry rather than fewer meaningful choices for school bus operators.
Read More →
The Fuel Budget You Can Actually Predict: How Propane Autogas Keeps Money in the Classroom
Learn how propane autogas helps school districts manage fuel costs with predictable pricing, lower maintenance, and reduced emissions from former transportation director Joel Stutheit.
Read More →
Hendrickson, Driventic Introduce New Electric Powertrain for School Buses
ELECTRAAX, the electrified, lightweight drive axle offers integrated ePowertrain efficiency and modular flexibility for Class 6–7 school bus use.
Read More →
