Alternate fuel

Alternate fuel means electricity or any fuel, other than natural gas or petroleum. The term includes, but is not limited to :
(1) Coal;
(2) Solar energy;
(3) Petroleum coke; shale oil; uranium; biomass, tar sands, oil-impregnated diatomaceous earth; municipal, industrial, or agricultural wastes; wood; and renewable and geothermal energy sources (For purposes of this paragraph (3), the term industrial does not include refineries.);
(4) Liquid, solid or gaseous waste by-products of refinery or industrial operations which are commercially unmarketable, either by reason of quality or quantity. (For purposes of this paragraph (4), the term waste by-product is defined as an unavoidable by-product of the industrial or refinery operation.) A waste by-product of a refinery or industrial operation is commercially unmarketable if it meets the criteria listed in the definition of “commercial unmarketability,” set forth below;
(5) Any fuel derived from an alternate fuel; and
(6) Waste gases from industrial operations. (For purposes of this subsection, the term industrial does not include refineries.)

Source

10 CFR § 500.2

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Scoping language

For purposes of this part and parts 501507 term:

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