The term “importer” means the person entering the taxable chemical for consumption, use, or warehousing.
The term “ton” means 2,000 pounds. In the case of any taxable chemical which is a gas, the term “ton” means the amount of such gas in cubic feet which is the equivalent of 2,000 pounds on a molecular weight basis.
Under regulations prescribed by the Secretary, methane or butane shall be treated as a taxable chemical only if it is used otherwise than as a fuel or in the manufacture or production of any motor fuel, diesel fuel, aviation fuel, or jet fuel (and, for purposes of section 4661(a), the person so using it shall be treated as the manufacturer thereof).
In the case of nitric acid, sulfuric acid, ammonia, or methane used to produce ammonia which is a qualified fertilizer substance, no tax shall be imposed under section 4661(a).
The term “qualified fertilizer use” means any use in the manufacture or production of fertilizer or for direct application as a fertilizer.
For purposes of section 4661(a), if no tax was imposed by such section on the sale or use of any chemical by reason of subparagraph (A), the first person who sells or uses such chemical other than in a sale or use described in subparagraph (A) shall be treated as the manufacturer of such chemical.
In the case of sulfuric acid produced solely as a byproduct of and on the same site as air pollution control equipment, no tax shall be imposed under section 4661.
For purposes of this subchapter, the term “taxable chemical” shall not include any substance to the extent derived from coal.
In the case of any chemical described in subparagraph (D) which is a qualified fuel substance, no tax shall be imposed under section 4661(a).
For purposes of this subsection, the chemicals described in this subparagraph are acetylene, benzene, butylene, butadiene, ethylene, naphthalene, propylene, toluene, and xylene.
For purposes of section 4661(a), if no tax was imposed by such section on the sale or use of any chemical by reason of subparagraph (A), the first person who sells or uses such chemical other than in a sale or use described in subparagraph (A) shall be treated as the manufacturer of such chemical.
No tax shall be imposed under section 4661(a) on any taxable chemical described in subparagraph (B) by reason of the transitory presence of such chemical during any process of smelting, refining, or otherwise extracting any substance not subject to tax under section 4661(a).
Except in the case of any substance imported into the United States or exported from the United States, the term “xylene” does not include any separated isomer of xylene.
No tax shall be imposed under section 4661(a) on any chromium, cobalt, or nickel which is diverted or recovered in the United States from any solid waste as part of a recycling process (and not as part of the original manufacturing or production process).
Subparagraph (A) shall not apply during any period that required corrective action by the taxpayer at the unit at which the recycling occurs is uncompleted.
In the case of corrective action requiring groundwater treatment, such action shall be treated as completed as of the close of the 10-year period beginning on the date such action is required if such treatment complies with the permit or order applicable under subparagraph (C)(i) throughout such period. The preceding sentence shall cease to apply beginning on the date such treatment ceases to comply with such permit or order.
For purposes of this paragraph, the term “solid waste” has the meaning given such term by section 1004 of the Solid Waste Disposal Act, except that such term shall not include any byproduct, coproduct, or other waste from any process of smelting, refining, or otherwise extracting any metal.
The term “qualified animal feed use” means any use in the manufacture or production of animal feed or animal feed supplements, or of ingredients used in animal feed or animal feed supplements.
For purposes of section 4661(a), if no tax was imposed by such section on the sale or use of any chemical by reason of subparagraph (A), the 1st person who sells or uses such chemical other than in a sale or use described in subparagraph (A) shall be treated as the manufacturer of such chemical.
No tax shall be imposed under section 4661(a) on any organic taxable chemical while such chemical is part of an intermediate hydrocarbon stream containing one or more organic taxable chemicals.
Subparagraph (A) shall not apply to any sale of any intermediate hydrocarbon stream unless the registration requirements of clauses (i) and (ii) of subsection (c)(2)(B) are satisfied.
For purposes of this paragraph, the term “organic taxable chemical” means any taxable chemical which is an organic substance.
Except as provided in subsections (b) and (e), if any person manufactures, produces, or imports any taxable chemical and uses such chemical, then such person shall be liable for tax under section 4661 in the same manner as if such chemical were sold by such person.
For purposes of this paragraph, the term “inventory exchange” means any exchange in which 2 persons exchange property which is, in the hands of each person, property described in section 1221(a)(1).
No tax shall be imposed under section 4661 on the sale by the manufacturer or producer of any taxable chemical for export, or for resale by the purchaser to a second purchaser for export.
Rules similar to the rules of section 4221(b) shall apply for purposes of subparagraph (A).
The provisions of subsections (a)(3) and (b)(3) of section 7652 shall not apply to any tax imposed by section 4661.