35 ILCS 505/4d

in effect

(35 ILCS 505/4d) Sec. 4d. All special fuel sold or used for non-highway purposes must contain only the dye Solvent Red 164 at a concentration spectrally equivalent to at least 3.9 pounds of the solid dye standard Solvent Red 26 per thousand barrels of special fuel except kerosene-type jet fuel sold for the propulsion of any aircraft. The dye must be added prior to removal from a terminal rack. The Department may also require all special fuel sold for non-highway use to have a marker added. (Source: P.A. 91-173, eff. 1-1-00.)

Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://www.ilga.gov/legislation/ilcs/ilcs.aspFetched: 10/17/2026