WASHINGTON, D.C. — More than $7 million in rebates will go toward replacing or retrofitting 400 older diesel school buses.

The Environmental Protection Agency (EPA) announced the funding recipients on Friday. Eighty-five school bus fleets in 35 states were awarded rebates, which are funded by the Diesel Emissions Reduction Act (DERA).

As previously reported, this is the third rebate program under DERA to fund cleaner school buses. The $7 million funding level for the 2015 program is more than that of the past two editions combined — it was $3 million in 2014 and $2 million in 2012.

Applicants replacing school buses with engine model years of 2006 and older will receive rebates between $15,000 and $25,000, depending on the size of the bus. This year, applicants also had the option of retrofitting buses with a diesel oxidation catalyst plus closed crankcase ventilation system to reduce emissions.

“Schools and other organizations that install clean diesel technology are doing more than just saving money — they’re creating cleaner, healthier air for children and all community residents,” said Christopher Grundler, director of the EPA’s Office of Transportation and Air Quality. “This program continues to help thousands of children breathe easier and lead safer lives year after year.”

To see the list of 2015 DERA school bus rebate recipients, go here.