ARM 17.30.303. PROHIBITIONS AND EXCEPTIONS

(1) No household cleaning product may be distributed, sold, offered, or exposed for sale if it contains phosphorus in concentrations in excess of a trace quantity, except that no dishwashing detergent may be distributed, sold, offered, or exposed for sale if it contains phosphorus in excess of 8.7% by weight expressed as elemental phosphorus. (2) No chemical water conditioner which contains more than 20% phosphorus by weight may be distributed, sold, offered, or exposed for sale. (3) The following cleaning agents and other products containing phosphorus are exempt from the provisions of this rule: (a) those used in food or beverage processing, or used by health care services and facilities; (b) those used by commercial establishments, and those used for industrial processes or for cleaning food and beverage processing equipment, medical or surgical equipment, or dairy equipment; and (c) those used for agricultural operations.