The proposed bill aims to regulate the sale and use of products containing perfluoroalkyl and polyfluoroalkyl substances (PFAS) in Montana. Starting January 1, 2028, the bill prohibits the manufacture, sale, or offering for sale of cosmetics, juvenile products, and menstrual products that contain intentionally added PFAS. Manufacturers must provide a certificate of compliance to retailers, confirming that their products do not contain these substances. Additionally, the bill outlines specific definitions for terms such as "covered product," "manufacturer," and "intentionally added PFAS," ensuring clarity in enforcement.

Furthermore, the bill addresses the use of class B firefighting foam and turnout gear containing PFAS. It prohibits the discharge or use of such foam for training purposes and requires manufacturers to notify sellers about the restrictions at least one year in advance. If a purchaser intends to buy PFAS-containing foam for emergency use, they must file an annual notice with the state fire marshal, demonstrating the lack of commercially available alternatives. Violations of these provisions can result in civil penalties, with the bill emphasizing the importance of environmental protection and public health.