Rule 2108. Upon finding that a manufacturer or distributor of a chemical or a material which may come into contact with drinking water has submitted false information regarding that chemical or material, or upon finding that a chemical or material previously approved has changed in composition, or upon finding at a later date that a chemical or material or constituent thereof may pose a hazard to the public health, the department shall rescind or suspend approval of that chemical or material for use in a waterworks system.
Mich. Admin. Code R. 325.12108