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HB 5551

Occupations: plumbers; requirements for backflow prevention testing; modify. Amends sec. 1107 of 2016 PA 407 (MCL 339.6107).

2025-2026 Regular Session Introduced by Mark Tisdel

Michigan bill modifies plumber licensing rules for backflow prevention device testing requirements and certification standards.

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#occupations:plumbers
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Bill Summary · HB 5551

Legislative bill overview

HB 5551 modifies Michigan's plumbing licensing law (2016 PA 407) specifically regarding backflow prevention testing requirements and qualifications. The bill amends Section 1107 to change existing standards for how plumbers must conduct or certify backflow prevention device testing. This is a technical licensing regulation that affects professional plumbing practice standards.

Why is this important

Backflow prevention devices protect public water supplies from contamination by preventing water from flowing backward into municipal systems. Changes to testing requirements directly impact water safety standards, public health protection, and whether Michigan's plumbing regulations align with industry best practices. This also affects licensing costs and job requirements for plumbers across the state.

Potential points of contention

  • Scope of testing authority: Whether the bill expands or restricts which licensed professionals can perform backflow testing, potentially affecting plumber income or creating barriers to entry
  • Public health standards: Whether modified requirements maintain adequate safety protections for drinking water systems or potentially weaken existing safeguards
  • Industry alignment: Whether changes align with national plumbing codes (like the Uniform Plumbing Code) or create inconsistency with neighboring states' standards

Compiled from official sources — confirm details with the bill’s official record.

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