SECTION 1. SHORT TITLE.

    This Act may be cited as the ``Fuel Cell Tax Extenders Act of 
2015''.

SEC. 2. EXTENSION AND MODIFICATION OF FUEL CELL CREDITS.

    (a) Extension of Residential Energy Efficient Property Credit for 
Qualified Fuel Cell Property.--
            (1) In general.--Section 25D(g) of the Internal Revenue 
        Code of 1986 is amended by inserting after ``property placed in 
        service after December 31, 2016'' the following: ``(December 
        31, 2021, in the case of qualified fuel cell property (as 
        defined in section 48(c)(1)))''.
            (2) Effective date.--The amendment made by this subsection 
        shall apply to property placed in service after the date of the 
        enactment of this Act.
    (b) Extension of Energy Credit.--
            (1) In general.--Section 48(c)(1)(D) of the Internal 
        Revenue Code of 1986 is amended--
                    (A) by striking ``for any period'' and inserting 
                ``on which construction was commenced'', and
                    (B) by striking ``December 31, 2016'' and inserting 
                ``December 31, 2021''.
            (2) Effective date.--The amendments made by this subsection 
        shall apply to property on which construction was commenced 
        after the date of the enactment of this Act.

SEC. 3. EXTENSION AND MODIFICATION OF HYDROGEN-RELATED CREDITS.

    (a) Extension of Alternative Motor Vehicle Credit.--
            (1) In general.--Section 30B(k)(1) of the Internal Revenue 
        Code of 1986 is amended by striking ``December 31, 2014'' and 
        inserting ``December 31, 2021''.
            (2) Effective date.--The amendment made by this subsection 
        shall apply to property purchased after December 31, 2014.
    (b) Extension and Modification of Alternative Fuel Vehicle 
Refueling Property Credit.--
            (1) Extension.--Section 30C(g) of the Internal Revenue Code 
        of 1986 is amended by striking ``placed in service after 
        December 31, 2014'' and inserting the following: ``placed in 
        service--
            ``(1) in the case of property relating to hydrogen, after 
        December 31, 2021, and
            ``(2) in the case of any other property, after December 31, 
        2014''.
            (2) Increase in limitation.--Section 30C(b) of the Internal 
        Revenue Code of 1986 is amended--
                    (A) in paragraph (1) by striking ``, and'' and 
                inserting ``that does not relate to hydrogen,'',
                    (B) by redesignating paragraph (2) as paragraph 
                (3), and
                    (C) by inserting after paragraph (1) the following 
                new paragraph:
            ``(2) $200,000 in the case of a property of a character 
        subject to an allowance for depreciation that relates to 
        hydrogen, and''.
            (3) Expansion of credit for hydrogen-related alternative 
        fuel vehicle refueling property.--
                    (A) In general.--Section 30C(c) of the Internal 
                Revenue Code of 1986 is amended by striking ``and'' at 
                the end of paragraph (1), by striking the period at the 
                end of paragraph (2) and inserting ``, and'', and by 
                adding at the end the following new paragraph:
            ``(3) with respect to property described in section 
        179A(d)(3)(A) for the storage or dispensing of fuel at least 85 
        percent of the volume of which consists of hydrogen, the 
        reference to motor vehicles in section 179A(d)(3)(A) includes 
        specified off-highway vehicles.''.
                    (B) Specified off-highway vehicles defined.--
                Section 30C(e) of such Code is amended by striking 
                paragraph (6) and inserting the following:
            ``(6) Specified off-highway vehicles.--For purposes of 
        subsection (c)(3)--
                    ``(A) In general.--The term `specified off-highway 
                vehicles' means all types of vehicles propelled by 
                motor that are designed for carrying or towing loads 
                from one place to another, regardless of the type of 
                load or material carried or towed and whether or not 
                the vehicle is registered or required to be registered 
                for highway use, including fork lift trucks used to 
                carry loads at railroad stations, industrial plants, 
                and warehouses.
                    ``(B) Exceptions.--Such term does not include--
                            ``(i) farm tractors, trench diggers, power 
                        shovels, bulldozers, road graders or rollers, 
                        and similar equipment which does not carry or 
                        tow a load, and
                            ``(ii) any vehicle that operates 
                        exclusively on a rail or rails.''.
            (4) Effective date.--The amendments made by this subsection 
        shall apply to property placed in service after December 31, 
        2014.
    (c) Extension and Modification of Alternative Fuel Credit for 
Hydrogen.--
            (1) Extension.--Section 6426(d)(5) of the Internal Revenue 
        Code of 1986 is amended by inserting after ``December 31, 
        2014'' the following: ``(December 31, 2021, in the case of any 
        sale or use involving hydrogen)''.
            (2) Expansion of credit to all hydrogen.--Section 
        6426(d)(2)(D) of such Code is amended by striking ``liquefied 
        hydrogen'' and inserting ``hydrogen''.
            (3) Effective date.--The amendments made by this subsection 
        shall apply to property sold or used after December 31, 2014.
Output: Fuel Cell Tax Extenders Act of 2015  This bill amends the Internal Revenue Code to extend through 2021:  the residential energy efficient property tax credit for qualified fuel cell property,  the energy tax credit for qualified fuel cell property, the alternative motor vehicle tax credit for qualified fuel cell motor vehicles, the tax credit for alternative fuel vehicle refueling property relating to hydrogen, and  the excise tax credit for the sale or use of alternative fuels involving hydrogen.