103rd Legislature (2025 to 2026) · House of Representatives bill

HB 4127

Energy: nuclear; definition of advanced nuclear reactors; provide for. Amends sec. 10h of 1939 PA 3 (MCL 460.10h). TIE BAR WITH: HB 4129'25, HB 4125'25, HB 4126'25, HB 4128'25, HB 4124'25

In committee Last action October 30, 2025: REFERRED TO COMMITTEE ON ENERGY AND ENVIRONMENT

Official bill page and text: legislature.mi.gov

Sponsors 19

Prime sponsor

Jamie Thompson

Cosponsors (18)

Alicia St. Germaine, Bill Schuette, Brian BeGole, David Prestin, Douglas Wozniak, Greg VanWoerkom, Gregory Alexander, Jaime Greene, Jason Woolford, Jay DeBoyer, Joey Andrews, Joseph Aragona, Karl Bohnak, Mike McFall, Rylee Linting, Samantha Steckloff, Stephen Wooden, William Bruck

Status

In committee as of October 30, 2025. The 103rd Legislature serves until the 104th convenes on January 13, 2027.

Referred to: House Energy, Senate Energy and Environment (from the official referral record)

Roll-call votes 1

October 28, 2025House of Representativespassed; given immediate effect Roll Call #273 Yeas 85 Nays 19 Excused 0 Not Voting 6Passed85-19

yes (85) Alexander, Andrews, Aragona, Arbit, BeGole, Beson, Bierlein, Bohnak, Bollin, Borton, Breen, Brixie, Bruck, Carter, B., Carter, T., Cavitt, Conlin, DeBoyer, Fairbairn, Farhat, Fitzgerald, Frisbie, Green, P., Greene, J., Hall, Harris, Herzberg, Hoadley, Hoskins, Jenkins-Arno, Johnsen, Kelly, Koleszar, Kuhn, Kunse, Liberati, Lightner, Linting, Longjohn, Maddock, Markkanen, Martin, Martus, McFall, Meerman, Mueller, Myers-Phillips, Neeley, Neyer, Outman, O’Neal, Paquette, Pavlov, Posthumus, Prestin, Price, Puri, Rigas, Robinson, Rogers, Roth, Schmaltz, Schriver, Schuette, Skaggs, Slagh, Smit, Snyder, St. Germaine, Steckloff, Tate, Thompson, Tisdel, Tsernoglou, VanWoerkom, VanderWall, Weiss, Wendzel, Witwer, Wooden, Woolford, Wortz, Wozniak, Xiong, Young

no (19) Byrnes, Carra, Coffia, DeSana, Dievendorf, Edwards, Fox, Grant, MacDonell, McKinney, Mentzer, Miller, Morgan, Paiz, Pohutsky, Rheingans, Steele, Wegela, Wilson

Official roll call

Timeline 13

Date	Chamber	Action
October 30, 2025	Senate	REFERRED TO COMMITTEE ON ENERGY AND ENVIRONMENT
October 30, 2025	Senate	PASSED BY HOUSE WITH IMMEDIATE EFFECT
October 28, 2025	House	transmitted
October 28, 2025	House	passed; given immediate effect Roll Call #273 Yeas 85 Nays 19 Excused 0 Not Voting 6
October 28, 2025	House	read a third time
October 23, 2025	House	placed on third reading
October 23, 2025	House	read a second time
March 25, 2025	House	referred to second reading
March 25, 2025	House	reported with recommendation without amendment
February 26, 2025	House	bill electronically reproduced February 25, 2025
February 25, 2025	House	referred to Committee on Energy
February 25, 2025	House	read a first time
February 25, 2025	House	introduced by Representative Rep. Jamie Thompson

Data: Open States (API v3; public data, attribution appreciated). Official record: legislature.mi.gov. Bill pages link to the official text, not copied.