Michigan SB947: Natural resources: inland lakes; dam safety regulations; provide for. Amends and adds (See bill). TIE BAR WITH: HB 5485'26

What the bill says

To amend 1994 PA 451, entitled "Natural resources and environmental protection act," by amending sections 31502, 31503, 31504, 31505, 31507, 31508, 31516, and 31518 (MCL 324.31502, 324.31503, 324.31504, 324.31505, 324.31507, 324.31508, 324.31516, and 324.31518), as added by 1995 PA 59, and by adding sections 31509a and 31518a.

From the engrossed text, September 22, 2026:

A bill to amend 1994 PA 451, entitled "Natural resources and environmental protection act," by amending sections 31502, 31503, 31504, 31505, 31507, 31508, 31516, and 31518 (MCL 324.31502, 324.31503, 324.31504, 324.31505, 324.31507, 324.31508, 324.31516, and 324.31518), as added by 1995 PA 59, and by adding sections 31509a and 31518a. the peoplE of the state of michigan enact: Sec. 31502. (1) "Abandonment" means an affirmative act on the part of an owner to discontinue maintenance or operation of a dam."Additional spillway capacity" means modification to an existing spillway or construction of an auxiliary spillway to increase flow conveyance capabilities of the dam. (2) "Administrative procedures act of 1969" means Act No. 306 of the Public Acts of 1969, being sections 24.201 to 24.328 of the Michigan Compiled Laws.the administrative procedures act of 1969, 1969 PA 306, MCL 24.201 to 24.328. (3) "Alteration" means a change in the design of an existing dam that directly affects or may directly affect the structural integrity of a dam. (4) "Appurtenant works" means the structure or machinery incident to or annexed to a dam that is built to operate and maintain a dam, including spillways, any of the following: (a) Spillways, either in a dam or separate from the dam. ; low (b) Low level outlet works. ; and water (c) Water conduits such as …

Read the full official text

Sponsors

• McMorrow, Mallory (D, 8) · primary sponsor
• Shink, Sue (D, 14)
• Singh, Sam (D, 28)
• Klinefelt, Veronica (D, 11)
• Irwin, Jeff (D, 15)
• Bayer, Rosemary (D, 13)
• Anthony, Sarah (D, 21)

Latest actions

1. October 1, 2026: ORDERED ENROLLED
2. October 1, 2026: TITLE AMENDMENT AGREED TO
3. October 1, 2026: GIVEN IMMEDIATE EFFECT
4. October 1, 2026: ROLL CALL: ROLL CALL # 260 YEAS 34 NAYS 2 EXCUSED 2 NOT VOTING 0
5. October 1, 2026: HOUSE SUBSTITUTE (H-1) CONCURRED IN
6. October 1, 2026: RULES SUSPENDED FOR IMMEDIATE CONSIDERATION
7. October 1, 2026: HOUSE AMENDED TITLE
8. October 1, 2026: PASSED BY HOUSE WITH SUBSTITUTE (H-1) WITH IMMEDIATE EFFECT
9. September 22, 2026: returned to Senate
10. September 22, 2026: title amended

Votes

• Roll Call #260 (October 1, 2026): 34 yea, 2 nay, passed
• passed; given immediate effect (September 22, 2026): 96 yea, 7 nay, passed
• PASSED (July 2, 2026): 22 yea, 15 nay, passed
• Reported Favorably With Substitute S-1 6/18/2026 (June 23, 2026): 8 yea, 3 nay, passed

Common questions

What is SB947?

SB947 is a bill in the Michigan Legislature (103rd Legislature): Natural resources: inland lakes; dam safety regulations; provide for. Amends and adds (See bill). TIE BAR WITH: HB 5485'26.

What does SB947 do?

In its own words: To amend 1994 PA 451, entitled "Natural resources and environmental protection act," by amending sections 31502, 31503, 31504, 31505, 31507, 31508, 31516, and 31518 (MCL 324.31502, 324.31503, 324.31504, 324.31505, 324.31507, 324.31508, 324.31516, and 324.31518), as added by 1995 PA 59, and by adding sections 31509a and 31518a.

What is the status of SB947?

Passed both chambers as of October 1, 2026. Latest action: ORDERED ENROLLED (October 1, 2026).

Who sponsored SB947?

McMorrow, Mallory (D, 8), with 6 co-sponsors.

Where is the official record for SB947?

On the Michigan Legislature website: https://www.legislature.mi.gov/Bills/Bill?ObjectName=2026-SB-0947