Addition of fluoride to public drinking water prohibited.

HF 3237 bans the addition of fluoride (including sodium fluoride, hydrofluoric acid, sodium fluorosilicate, and hydrofluorosilicic acid) to public drinking water systems in Minnesota. It directly affects all public water systems serving at least 15 connections or 25 people annually, requiring them to stop adding fluoride by August 1, 2025. The bill repeals Minnesota Statutes section 144.145, which previously allowed and regulated fluoride addition for public health. The commissioner of health will enforce this prohibition, with violations subject to daily fines. This changes existing law by eliminating the requirement for fluoridation in municipal water systems.