225 ILCS 470/8
The Director shall from time to time issue reasonable regulations for enforcement of this Act that shall have the force and effect of law. In determining these regulations, he shall appoint, consult with, and be advised by committees representative of industries to be affected by the regulations. These regulations may include (1) standards of net weight, measure or count, and reasonable standards of fill, for any commodity in package form, (2) rules governing the technical and reporting procedures to be followed and the report and record forms and marks of approval and rejection to be used by inspectors of weights and measures in the discharge of their official duties, and (3) exemptions from the sealing or marking requirements of Section 14 of this Act with respect to weights and measures of such character or size that such sealing or marking would be inappropriate, impracticable, or damaging to the apparatus in question. These regulations shall include specifications, tolerances, and regulations for weights and measures, of the character of those specified in Section 10 of this Act, designed to eliminate from use (without prejudice to apparatus that conforms as closely as practicable to the official standards) such weights and measures as are (1) inaccurate, (2) of faulty construction (that is, not reasonably permanent in their adjustment or not capable of correct repetition of their indications), or (3) conducive to the perpetration of fraud. Specifications, tolerances, and regulations for commercial weighing and measuring devices recommended by the National Institute of Standards and Technology and published in National Institute of Standards and Technology Handbook 44 and supplements thereto or in any publication revising or superseding Handbook 44, shall be the specifications, tolerances, and regulations for commercial weighing and measuring devices of this State, except insofar as specifically modified, amended, or rejected by a regulation issued by the Director. Notwithstanding the provisions of this paragraph, liquefied natural gas and propane used as motor fuel shall be sold in diesel gallon equivalents, and compressed natural gas shall be sold in gasoline gallon equivalents. Propane used as motor fuel shall be sold in actual measured gallon volumetric units, which shall then be multiplied by 0.651 to determine the diesel gallon equivalents that are subject to tax under the Motor Fuel Tax Law.
The National Institute of Standards and Technology Handbook 133 and its supplements, or any publication revising or superseding Handbook 133, shall be the method for checking the net contents of commodities in package form. The National Institute of Standards and Technology Handbooks 105-1, 105-2, 105-3, 105-4, 105-8, and their supplements, or any publication revising or superseding Handbooks 105-1, 105-2, 105-3, 105-4, and 105-8 shall be specifications and tolerances for reference standards and field standards weights and measures.
For purposes of this Act, apparatus shall be deemed "correct" when it conforms to all applicable requirements promulgated as specified in this Section. Apparatus that does not conform to all applicable requirements shall be deemed "incorrect".
The Director is authorized to prescribe by regulation, after public hearings, container sizes for fluid dairy products and container sizes for ice cream, frozen desserts, and similar items.
For the purposes of this Act, any apparatus certified by the Department or city sealer as of July 1, 2012 satisfies construction and installation requirements.
The Uniform Packaging and Labeling Regulation and the Uniform Regulation for the Method of Sale of Commodities in the National Institute of Standards and Technology Handbook 130, and any of its subsequent supplements or revisions, shall be the requirements and standards governing the packaging, labeling, and method of sale of commodities for this State, except insofar as specifically modified, amended, or rejected by regulation issued by the Director, and except that liquefied natural gas used as motor fuel shall be sold in diesel gallon equivalents, and compressed natural gas shall be sold in gasoline gallon equivalents.
225 ILCS 470/8