Municipal Code of Chicago tit. 11, ch. 11-4, art. X — PHOSPHORUS CONTROL (11-4-1610 et seq.) | Municipal Code of Chicago (2026 S-74, current through Council Journal of June 17, 2026) — City of Chicago

Municipal Code of Chicago § 11-4-1610 Definitions.

11-4-1610 Definitions. Definitions relating to Article X will be found in Article I, Section 11-4-120. (Prior code § 17-7.1)

Municipal Code of Chicago § 11-4-1620 Labeling of detergents.

11-4-1620 Labeling of detergents. It shall be unlawful for any person, firm or corporation to sell, offer or expose for sale, give or furnish any synthetic detergent or detergent, whether in the form of crystals, powders, flakes, bars, liquids, sprays or any other form, in the City of Chicago from and after February 1, 1971, unless the container, wrapper or other packaging thereof shall be clearly labeled with respect to its polyphosphate builder or phosphorus ingredient content clearly and legibly set forth thereon in terms of percentage of phosphorus by weight, expressed as elemental phosphorus per container, wrapper or other packaging thereof, as well as grams of phosphorus, expressed as elemental phosphorus, per recommended use level. (Prior code § 17-7.2)

Municipal Code of Chicago § 11-4-1630 Limitations on phosphorus content.

11-4-1630 Limitations on phosphorus content. (a) It shall be unlawful for any person, firm or corporation to sell, offer or expose for sale, give or furnish any synthetic detergent or detergent containing more than 8.7 percent of phosphorus by weight, expressed as elemental phosphorus, within the City of Chicago from and after February 1, 1971. It shall also be unlawful for any person, firm or corporation to sell, offer or expose for sale, give or furnish any synthetic detergent or detergent which contains more than seven grams of phosphorus by weight expressed as elemental phosphorus within the City of Chicago from and after February 1, 1971. Notwithstanding the foregoing provisions of this Section 11-4-1630(a), synthetic detergents or detergents manufactured for use in machine dishwashers, dairy equipment, beverage equipment, food processing equipment and industrial cleaning equipment shall not be subject to the limitations herein set forth but are hereby made expressly to the provisions of Section 11-4-1630(b). (b) It shall be unlawful for any person, firm or corporation to sell, offer or expose for sale, give or furnish any synthetic detergent or detergent containing any phosphorus, expressed as elemental phosphorus, including synthetic detergents or detergents manufactured for machine dishwashers, dairy equipment, beverage equipment, food processing equipment and industrial cleaning equipment, within the City of Chicago from and after June 30, 1972. (c) The concentration of phosphorus by weight, expressed as elemental phosphorus in any synthetic detergent or detergent shall be determined by the current applicable method prescribed by the American Society for Testing and Materials (ASTM). (Prior code § 17-7.3)