School Bus Fleet
MenuMENU
SearchSEARCH

$25M awarded for bus replacements, retrofits

The South Coast Air Quality Management District in California provides $16.6 million to help school districts buy new CNG school buses. Private operators get $8.8 million to retrofit older diesel buses with particulate traps.

May 17, 2010
2 min to read


DIAMOND BAR, Calif. — In one of its largest school bus funding awards, the South Coast Air Quality Management District (AQMD) on May 7 awarded $16.6 million to help school districts replace older diesel school buses with new, cleaner-burning compressed natural gas (CNG) buses.

The agency also awarded $8.8 million to help private operators retrofit 545 diesel school buses with particulate traps to reduce diesel emissions.

The action will allow six school districts to replace a total of 96 pre-1987 diesel school buses with cleaner-burning CNG buses, as well as provide funding for the necessary fueling infrastructure.

The school bus awards and retrofits approved by AQMD include:

Ad Loading...

School District

# of CNG buses

Total Funding Award

Castaic

1

$169,524

Walnut Valley

2

$331,048

Downey

2

$339,048

Bonita

5

$847,620

Hacienda/La Puente

6

$993,144

Los Angeles

80

$13,561,920

Private School Bus Operator

# of PM Traps

Total Funding Award

Aerocoach

1

Ad Loading...

$20,000

Alliance Bus lines

2

$40,000

Certified Transportation

Ad Loading...

20

$400,000

Durham Services

32

416,000

Ad Loading...

First Student

291

$4,514,500

Richmond

1

Ad Loading...

$20,000

Tumbleweed

68

$884,000

Atlantic Express

Ad Loading...

130

$2,600,000

Since 2000, AQMD has approved more than $177 million to replace more than 1,000 older diesel school buses with cleaner models and retrofit 3,536 newer diesel school buses with particulate traps.

AQMD is the air pollution control agency for Orange County and major portions of Los Angeles, San Bernardino and Riverside counties.

More Alternative Fuels

School Bus Fleet graphic featuring an electric school bus plugged into a charging station with the headline “Alt-Fuel Moves: Electric Deployments & New Funding,” dated November 2026.
Alternative Fuels•by Elora Haynes•November 6, 2026

Alt-Fuel Moves: Electric Bus Deployments, New Funding & V2G Expansion

School districts and transportation partners are adding electric school buses, securing new funding, and expanding charging infrastructure as alternative-fuel investments continue across the country.

Read More →
Mark Childers of Thomas Built Buses gestures beside the second-generation Saf-T-Liner C2 Jouley electric school bus chassis. Overlay text reads “Jouley Chassis Walkaround,” with Thomas Built Buses and School Bus Fleet logos.
Alternative Fuels•November 5, 2026

What's Underneath the Jouley Electric School Bus? Take a Look at This Chassis!

Get an inside, up-close look at Thomas Built Buses’ C2 electric bus chassis in this walkaround video on location at Freightliner Custom Chassis.

Read More →
School Bus Fleet graphic showing two yellow electric school buses parked beside a charging station, with the headline “Bipartisan Bill Seeks to Extend Clean School Bus Program Through 2031.”
Alternative Fuels•by Elora Haynes•October 14, 2026

Bipartisan Bill Seeks to Extend Clean School Bus Program Through 2031

The proposed legislation would renew federal support for cleaner school buses as districts navigate funding uncertainty, rising fuel and infrastructure costs, and fleet replacement needs.

Read More →
Ad Loading...
School Bus Fleet graphic reading “Alt-Fuel Moves: Bidirectional Charging & Propane” alongside an electric school bus and charging station.
Alternative Fuels•by Elora Haynes•October 5, 2026

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 →
School Bus Fleet graphic reading “When Fuel Prices Change the Math: What rising diesel costs mean for fleet planning,” illustrated with a fuel pump and oil barrels.
Alternative Fuels•by Steve Mitchell•October 4, 2026

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 →
Yellow full-size school bus traveling along a tree-lined road beneath the words “Gas is Back!” in a School Bus Fleet graphic.
Alternative Fuels•Cover Story•by Amanda Huggett•October 2, 2026

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 →
Ad Loading...
EPA DERA funding graphic featuring a yellow school bus beneath a blue sky with the EPA logo and the words “DERA Funding Returns!”
Alternative Fuels•by Amanda Huggett•September 25, 2026

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 →
A yellow RIDE Type D electric school bus is parked along a tree-lined street outside a school.
Alternative Fuels•by Elora Haynes•September 25, 2026

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 →
Catalyst Mobility: Building Clean Transportation Together
Management•by Alex Roman•September 14, 2026

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 →
Ad Loading...
An orange and yellow graphic with a black and white image of a propane deployment event with text reading "Charging Hubs & Real World EV Testing."
Alternative Fuels•by Elora Haynes•September 3, 2026

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 →