Notice 2022-56, page 480.

Section 45W, as added by the IRA, provides a credit for purchasing and placing in service qualified commercial clean vehicles during a taxable year. The amount of the credit shall be the lesser of 15 percent of the basis of such vehicle (30 percent in the case of a vehicle not powered by a gasoline or diesel internal combustion engine), or the incremental cost of such vehicle, as defined in § 45W(b)(2). The amount of the credit shall not exceed $7,500 in the case of a vehicle which has a gross vehicle weight rating of less than 14,000 pounds, and $40,000 for all other vehicles. Section 30C provides a credit for the cost of qualified alternative fuel vehicle refueling property placed in service by the taxpayer during the taxable year. Section 30C(a) allows a credit in an amount equal to 30 percent (6 percent in the case of property of a character subject to depreciation) of the cost of any qualified alternative fuel vehicle refueling property placed in service by the taxpayer during the taxable year. The IRA increased the limitation of the credit from $30,000 to $100,000 in § 30C(b).