Provide an excise tax credit for certain heavy trucks when operated in power take-off mode.

Clause (iv) of section 6421(e)(2)(C) of the Internal Revenue Code of 1986 is amended—

(1) by striking For purposes of clause (ii)(II), the use-based test and inserting “For purposes of clause (ii)(II)—

Except as provided in subclause (II), the use-based test

(2) by striking this clause and inserting this subclause, and

(3) by adding at the end the following new subclauses:

In the case of any mobile mounted concrete boom pump vehicle which does not meet the requirements of subclause (I), such vehicle shall be deemed to meet the use-based test, but the amount of the payment under subsection (a) with respect to gasoline used in such vehicle shall not exceed 55 percent of the amount determined by multiplying the number of gallons of gasoline used in such vehicle during the taxpayer’s taxable year by the rate at which tax was imposed on such gasoline under section 4081.

For purposes of this clause, the term mobile mounted concrete boom pump vehicle means a vehicle which is mobile machinery (as defined in section 4053(8)) on which the mounted machinery consists of a concrete boom pump and related subordinate parts, and which is operated in power take-off mode while not traveling.

The amendments made by this section shall apply to fuel used in taxable years ending after December 31, 2024.