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clean school bus

Defined in 2 places of the United States Code.

The term “clean school bus” means a school bus with a gross vehicle weight of greater than 14,000 pounds that—

(A) is powered by a heavy duty engine; and

(B) is operated solely on an alternative fuel or ultra-low sulfur diesel fuel.

Same definition in 2 sections

The term “clean school bus” means a school bus that—

(A) the Administrator certifies reduces emissions and is operated entirely or in part using an alternative fuel; or

(B) is a zero-emission school bus.

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