Michigan · 2025-2026 Regular Session · Bill
HB 4478: Weapons: firearms; sentencing guidelines; update. Amends sec. 11b, ch. XVII of 1927 PA 175 (MCL 777.11b). TIE BAR WITH: HB 4479'25
In committee Official data
- Introduced
- In committee
- Passed one chamber
- Passed both chambers
- Enacted
Last official action: ·Record last updated:
Plain-language summary
HB 4478 is a bill introduced in the Michigan House on May 8, 2025. According to its official title, it concerns: Weapons: firearms; sentencing guidelines; update. Amends sec. 11b, ch. XVII of 1927 PA 175 (MCL 777.11b). TIE BAR WITH: HB 4479'25. Primary sponsor: Matt Longjohn (Democratic). It lists 25 additional sponsors. Most recent recorded action (May 13, 2025): bill electronically reproduced 05/08/2025.
Generated automatically from the official title, sponsor list, and status record only. It does not characterize the bill’s purpose or effects. How summaries are written
Sponsors
Sponsors by party (alphabetical): Democratic 26
| Name | Role | Party | Chamber | District |
|---|---|---|---|---|
| Matt Longjohn | Primary sponsor | Democratic | House | 40 |
| Noah Arbit | Co-sponsor | Democratic | House | 20 |
| Kelly Breen | Co-sponsor | Democratic | House | 21 |
| Erin Byrnes | Co-sponsor | Democratic | House | 15 |
| Betsy Coffia | Co-sponsor | Democratic | House | 103 |
| Jennifer Conlin | Co-sponsor | Democratic | House | 48 |
| Morgan Foreman | Co-sponsor | Democratic | House | 33 |
| Kara Hope | Co-sponsor | Democratic | House | 74 |
| Matt Koleszar | Co-sponsor | Democratic | House | 22 |
| Sharon MacDonell | Co-sponsor | Democratic | House | 56 |
| Jaz Martus | Co-sponsor | Democratic | House | 69 |
| Donavan McKinney | Co-sponsor | Democratic | House | 11 |
| Denise Mentzer | Co-sponsor | Democratic | House | 61 |
| Jason Morgan | Co-sponsor | Democratic | House | 23 |
| Cynthia Neeley | Co-sponsor | Democratic | House | 70 |
| Tonya Phillips | Co-sponsor | Democratic | House | 7 |
| Laurie Pohutsky | Co-sponsor | Democratic | House | 17 |
| Natalie Price | Co-sponsor | Democratic | House | 6 |
| Carrie Rheingans | Co-sponsor | Democratic | House | 47 |
| Phil Skaggs | Co-sponsor | Democratic | House | 80 |
| Penelope Tsernoglou | Co-sponsor | Democratic | House | 75 |
| Dylan Wegela | Co-sponsor | Democratic | House | 26 |
| Regina Weiss | Co-sponsor | Democratic | House | 5 |
| Jimmie Wilson | Co-sponsor | Democratic | House | 32 |
| Stephen Wooden | Co-sponsor | Democratic | House | 81 |
| Stephanie Young | Co-sponsor | Democratic | House | 16 |
“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.
Recent official actions
- bill electronically reproduced 05/08/2025
- referred to Committee on Judiciary
- read a first time
- introduced by Representative Rep. Matt Longjohn