Massachusetts · 194th Legislature (2025-2026) · Bill
H 4129: An Act relative to the installation of illegal mufflers
In committee Official data
- Introduced
- In committee
- Passed one chamber
- Passed both chambers
- Enacted
Last official action: ·Record last updated:
Plain-language summary
H 4129 is a bill introduced in the Massachusetts House on May 12, 2025. According to its official title, it concerns: An Act relative to the installation of illegal mufflers. Primary sponsor: Bruce Ayers (Democratic). It lists 1 additional sponsor. Most recent recorded action (February 25, 2026): Accompanied a study order, see H5143.
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
Official summary
Abstract published by the legislature (via Open States). Text as published by the legislature; reproduced verbatim.
By Representative Ayers of Quincy, a petition (accompanied by bill, House, No. 4129) of Bruce J. Ayers relative to the installation of illegal mufflers. Transportation.
Sponsors
Sponsors by party (alphabetical): Democratic 2
| Name | Role | Party | Chamber | District |
|---|---|---|---|---|
| Bruce Ayers | Primary sponsor | Democratic | House | 1st Norfolk |
| James Arena-DeRosa | Co-sponsor | Democratic | House | 8th Middlesex |
“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.
Recent official actions
- Accompanied a study order, see H5143
- Hearing rescheduled to 10/21/2025 from 11:00 AM-11:45 PM in A-2 and Virtual Hearing updated to New End Time
- Hearing rescheduled to 10/21/2025 from 11:00 AM-01:00 PM in A-2 and Virtual Hearing location changed
- Hearing scheduled for 10/21/2025 from 11:00 AM-01:00 PM in B-2
- Senate concurred
- Referred to the committee on Transportation