Bill Commons

MI SB 504

in committee

Water supply: quality and standards; testing and reporting of the amount of microplastics in public drinking water supplies; require. Amends sec. 5 of 1976 PA 399 (MCL 325.1005) & adds sec. 6a.

Michigan · 2025-2026 Regular Session (103rd Legislature) · upper

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Quick answers

Did MI SB 504 pass?

Not yet. MI SB 504 is in committee and has not come to a final vote. Latest recorded action (2026-03-11): REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1)

What is MI SB 504 about?

MI SB 504 is a bill in the 2025-2026 Regular Session (103rd Legislature) titled “Water supply: quality and standards; testing and reporting of the amount of microplastics in public drinking water supplies; require. Amends sec. 5 of 1976 PA 399 (MCL 325.1005) & adds sec. 6a.”.

Who sponsors MI SB 504?

Dayna Polehanki is the primary sponsor of MI SB 504, joined by 7 cosponsors.

Introduced
2025-08-14
Latest action
2026-03-11 — REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1)
Bill type
bill
Last updated
—

Subjects

Sponsors

  • Dayna Polehankiprimary
  • Darrin Camillericosponsor
  • Mary Cavanaghcosponsor
  • Rosemary Bayercosponsor
  • Sue Shinkcosponsor
  • Jeff Irwincosponsor
  • Stephanie Changcosponsor
  • Mallory McMorrowcosponsor

Committees

Not provided by source.

Action timeline

Newest first

  1. 2026-03-11

    REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1)

    referral-committee

  2. 2026-03-11

    REPORTED FAVORABLY WITH SUBSTITUTE (S-1) 3/10/2026

    committee-passage

  3. 2025-08-14

    REFERRED TO COMMITTEE ON NATURAL RESOURCES AND AGRICULTURE

    referral-committee

  4. 2025-08-14

    INTRODUCED BY SENATOR DAYNA POLEHANKI

    introduction

Versions

Documents

Votes

Not provided by source.

Related bills

No related bills recorded for this bill.

Official source

https://legislature.mi.gov/Bills/Bill?ObjectName=2025-SB-0504

Attribution

Data from openstates_bulk_csv, retrieved 2026-07-24T05:24:27.556085Z

Inspect retained evidence for changes recorded after evidence tracking began:

Source and document changesStatus and relationship changes

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Use this data

Every field on this page is available from the free public API — no key or licence required. Fetch this bill as JSON: GET /api/v1/bills?jurisdiction=MI&identifier=SB 504. See the API docs or the MCP server for AI assistants.

Known limitations

  • Sponsor party and chamber affiliation are not yet captured by this API.
  • Committee referrals are not yet captured.

See the methodology page for data sources and limitations.