Bill > HB540

This bill seeks to prohibit the addition of fluoride to public water systems in Hawaii, based on findings that suggest potential health risks associated with fluoridation. The bill cites research from the National Toxicology Program and National Research Council indicating that fluoride may be an endocrine disruptor linked to various health issues, including lowered thyroid function, neurotoxicity, and potential negative impacts on children's cognitive development. The legislature argues that formula-fed infants are particularly at risk, with studies showing many exceed recommended fluoride intake levels. The bill amends existing water regulation statutes to explicitly forbid water suppliers from introducing fluoride into public water systems and preempts any existing laws, executive orders, ordinances, regulations, or rules that might conflict with this prohibition. By adding a new subsection to the existing law, the bill effectively makes it illegal for any person or water supplier to introduce fluoride into public water systems, rendering any conflicting regulations void. The bill would take effect immediately upon approval, representing a significant change in the state's approach to water fluoridation based on the legislature's interpretation of potential health risks.

Health and Social Services

https://www.capitol.hawaii.gov/session/measure_indiv.aspx?billtype=HB&billnumber=540&year=2026