Colorado · 2025 Regular Session · Bill
HB 25-1039: Commercial Vehicle Muffler Requirements
Enacted Official data
- Introduced
- In committee
- Passed one chamber
- Passed both chambers
- Enacted
Last official action: ·Record last updated:
Plain-language summary
HB 25-1039 is a bill introduced in the Colorado House on January 8, 2025. According to its official title, it concerns: Commercial Vehicle Muffler Requirements. Primary sponsor: Marc Catlin (Republican), Dylan Roberts (Democratic), Lesley Smith (Democratic), Brianna Titone (Democratic). It lists 4 additional sponsors. Most recent recorded action (May 15, 2025): Governor Signed.
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.
The act requires all commercial vehicles to have a muffler. The muffler must be located so that it may be visually inspected to ensure it is present, intact, and functioning properly; except that a muffler need not be visible for inspection if certain documentation is present in the commercial vehicle and available for inspection by a peace officer. Standards are set for the necessary documentation. The act increases the fine for a violation from $500 to $1,000. The fine is not imposed if the owner or operator can show that a muffler was installed before the citation was issued and that the muffler complied with the manufacturing noise standards for the model year of the commercial vehicle. The fine is decreased by 50% if a muffler is installed within 30 days after the citation is written. The act applies to commercial vehicles with an internal combustion engine and does not apply to farm vehicles. State agencies must include language in construction contracts stating that a contractor's or subcontractor's commercial vehicle that enters a public project site is required to comply with the act. (Note: This summary applies to this bill as enacted.)
Sponsors
Sponsors by party (alphabetical): Democratic 7 · Republican 1
| Name | Role | Party | Chamber | District |
|---|---|---|---|---|
| Marc Catlin | Primary sponsor | Republican | Senate | 5 |
| Dylan Roberts | Primary sponsor | Democratic | Senate | 8 |
| Lesley Smith | Primary sponsor | Democratic | House | 49 |
| Brianna Titone | Primary sponsor | Democratic | House | 27 |
| Meghan Lukens | Co-sponsor | Democratic | House | 26 |
| Julie McCluskie | Co-sponsor | Democratic | House | 13 |
| Karen McCormick | Co-sponsor | Democratic | House | 11 |
| Alex Valdez | Co-sponsor | Democratic | House | 5 |
“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.
Recent official actions
- Governor Signed
- Signed by the Speaker of the House
- Signed by the President of the Senate
- Sent to the Governor
- Senate Third Reading Passed - No Amendments
- Senate Committee on Appropriations Refer Unamended - Consent Calendar to Senate Committee of the Whole
- Senate Second Reading Special Order - Passed - No Amendments
- Senate Committee on Transportation & Energy Refer Unamended to Appropriations
- Introduced In Senate - Assigned to Transportation & Energy
- House Third Reading Passed - No Amendments
- House Second Reading Special Order - Passed with Amendments - Committee, Floor
- House Committee on Appropriations Refer Unamended to House Committee of the Whole
Showing 12 most recent of 14 actions. Full history