Water supply: systems; cyber-physical security and operational technology protections for public water systems; provide for. Amends sec. 21 of 1976 PA 399 (MCL 325.1021) & adds sec. 8a.

Michigan House Bill 5850, introduced on April 22, 2026, aims to enhance the security of public water systems by mandating comprehensive cyber-physical security measures. The bill proposes amendments to the Safe Drinking Water Act, specifically section 21 (MCL 325.1021), and introduces a new section 8a. Key provisions include requiring public water supplies to implement robust cybersecurity and physical security protocols, establish incident response plans, and imposing significant civil penalties for noncompliance. The bill is currently pending in the House Government Operations Committee.

While specific media coverage on HB 5850 is limited, the bill's focus on strengthening the security of public water systems is likely to be viewed positively. Enhancing cybersecurity and physical protections for critical infrastructure aligns with growing concerns over potential cyber threats and the need for resilient public utilities. The introduction of incident response plans and penalties for noncompliance demonstrates a proactive approach to safeguarding water supplies, which is expected to garner support from public safety advocates and the general public.

Although direct negative media coverage of HB 5850 is not readily available, potential criticisms may arise regarding the financial and operational burdens placed on public water systems. Implementing comprehensive security measures and incident response plans could require significant investment, which might be challenging for smaller or underfunded utilities. Additionally, concerns may be raised about the effectiveness of the proposed penalties in ensuring compliance and whether the bill adequately addresses the complexities of cyber-physical security in the water sector.