(35 ILCS 55/10)

    Sec. 10. Definitions. As used in this Act:
    "Attestation" means a statement that is made under penalty of perjury by a producer under Section 27.
    "Department" means the Department of Commerce and Economic Opportunity.
    "Eligible taxpayer" means a taxpayer that:
        (1) is subject to subsections (a) and (b) of Section 201 of the Illinois Income Tax Act;
        (2) has eligible qualifying hydrogen use for which the producer has provided an

attestation and verification under Section 27;

        (3) complies with subsections (e) and (f) of Section 15 if applicable; and
        (4) is allocated credits by the Department under Section 25.

If the taxpayer is an
individual, partnership, trust, estate, or Subchapter S corporation, then the taxpayer is an eligible taxpayer only to the
extent that the taxpayer's Illinois income tax liability is due to
an equity interest in a partnership that uses qualifying hydrogen, a Subchapter S corporation that uses qualifying hydrogen,
or a similar pass-through entity that uses qualifying hydrogen.

"Eligible qualifying hydrogen use" means the use, in Illinois, of qualifying hydrogen, except for the use of qualifying hydrogen in the following sectors or for the following purposes:

(1) the use of qualifying hydrogen in all vehicles powered by combustion engines or in

vehicles in classes 1, 2, 3, 4, 5, and 6 in the 8-category Gross Vehicle Weight Rating (GVWR)  classification system, where Class 1 includes vehicles with a GVWR of less than 6,000 pounds (lbs); Class 2 includes vehicles with a GVWR of 6,001 to 10,000 lbs; Class 3 includes vehicles with a GVWR of 10,001 to 14,000 lbs; Class 4 includes vehicles with a GVWR of 14,001 to 16,000 lbs; Class 5 includes vehicles with a GVWR of 16,001 to 19,500 lbs; Class 6 includes vehicles with a GVWR of 19,501 to 26,000 lbs; Class 7 includes vehicles with a GVWR of 26,001 to 33,000 lbs; and Class 8 includes vehicles with a GVWR of greater than 33,001 lbs;

(2) the use of qualifying hydrogen in heating or cooking in residential and commercial

buildings, including space heating, water heating, and clothes drying, or in other cases where qualifying hydrogen is blended into the gas distribution system of a residential or commercial building; and

(3) the use of qualifying hydrogen for the production of electricity generated using

direct gas combustion, except when that use is (A) for the purpose of emissions reductions to achieve compliance with any rules or regulations promulgated by the United States Environmental Protection Agency, as interpreted and applied in State Implementation Plans under those rules and regulations, and (B) undertaken pursuant to an approved State Implementation Plan for the State of Illinois.

"Environmental attribute credit" means a renewable energy credit, zero-emission credit, or carbon mitigation credit, as those terms are defined in Sections 1-10 and 1-75 of the Illinois Power Agency Act, or any other environmental attribute credit tracked by the Generation Attribute Tracking System administered by PJM Interconnection, LLC.

    "Equity investment eligible community" has the meaning provided in Section 5-5 of the Energy Transition Act.
    "MISO" means Midcontinent Independent System Operator, Inc.
    "MISO maximum generation event" has the same meaning as in MISO's Reliability Operating Procedures.

"PJM" means PJM Interconnection, LLC, the regional transmission organization (RTO) that coordinates the movement of wholesale electricity for portions of 13 states, including Illinois.

    "PJM performance assessment interval" has the same meaning as provided in the PJM Open Access Transmission Tariff.
    "Producer" means a producer of qualifying hydrogen.

"Qualified renewable energy resource" means an electric generator
that (1) is fueled by wind, solar thermal energy, photovoltaic cells
and panels, geothermal energy, or hydropower that does not involve new
construction or significant expansion of hydropower dams; and (2)
produces renewable energy credits that are eligible to be counted
toward the renewable energy requirements in subsection (c) of Section
1-75 of the Illinois Power Agency Act.

"Qualifying hydrogen" means hydrogen that (i) receives 100% of the tax credit available under 26 U.S.C. 45V and (ii) meets the requirements of Section 27 of this Act. If any of the requirements of 26 U.S.C. 45v conflict with any of the requirements of Section 27, then the relevant requirement of Section 27 shall govern for purposes of determining eligibility for the allowable credit established under this Act.

"Regional grid" means the territory served by a specific regional
transmission organization.

"Regional transmission organization" means PJM Interconnection,
LLC; Midcontinent Independent System Operator; or any other entity
charged with regional real-time balancing of electricity generation
and load.

"Zero-emission facility" has the same meaning as provided in Section 1-10 of the Illinois Power Agency Act as that Act exists on the effective date of this Act.

(Source: P.A. 103-268, eff. 7-25-23.)