CO SB 21
enactedClean Fleet Enterprise Replace Aging Diesel Trucks
Colorado · 2026 Regular Session · upper
Subscribe in a feed reader. The feed covers recorded actions from the last 30 days; Bill Commons may record an action after it happened at the legislature.
Quick answers
Did CO SB 21 pass?
Yes. CO SB 21 has been enacted into law. Latest recorded action (2026-04-20): Governor Signed
What is CO SB 21 about?
The act authorizes the clean fleet enterprise (enterprise) to incentivize, support, and accelerate the replacement of a truck that is part of a fleet and that is powered by a diesel-fueled internal combustion engine, is a model year of 2009 or earlier, and is registered, operable, and capable of independent roadway operation (aging diesel truck) with a diesel truck that is a model year of 2018 or later (new diesel truck) until December 31, 2031. The act also allows the enterprise to provide funding or financing through grant programs, rebate programs, revolving loan funds, or other strategies to help owners and operators of aging diesel truck fleets finance the replacement of aging diesel trucks with new diesel trucks to reduce the up-front costs of acquiring new diesel trucks until December 31, 2031. The enterprise may use the clean fleet enterprise fund to provide money to support the replacement of aging diesel trucks with new diesel trucks, but the enterprise is required to ensure that it does not expend more than 20% of the fund's income during a state fiscal year for the support. To qualify for any money provided by the enterprise for the replacement of aging diesel trucks with new diesel trucks, the act requires a purchaser of the new diesel truck to surrender an aging diesel truck to the seller of the new truck. The seller of the new diesel truck must decommission the aging diesel truck by drilling a hole in the engine's block and cutting the chassis rails in half. The seller must be an authorized dealer of new diesel trucks who must certify that the new diesel truck meets all state and federal emissions and safety standards for its model year. The enterprise must prioritize applications to replace aging diesel trucks from businesses that are privately owned, independently owned, or have limited access to capital. The enterprise is not allowed to accept an application from the owner or operator of a motor vehicle fleet that owns, leases, or operates more than 50 heavy-duty motor vehicles or from a business entity with annual gross revenue exceeding $100 million. The enterprise is required to prioritize the replacement of an aging diesel truck that has a model year of no later than 2006. The act expands the business purpose of the enterprise to include providing incentives and support for refrigerated transport units powered by zero emission technology. The act allows the enterprise to exercise its rights and powers without regard to the state 'Procurement Code'. The act requires the enterprise to annually prepare a report that includes the estimated pollution reduction benefits of the enterprise. The enterprise must seek to ensure that all projects funded by the enterprise achieve measurable results and outcomes.(Note: This summary applies to this bill as enacted.)
Who sponsors CO SB 21?
R. Stewart, M. Lindsay, J. Jackson and 6 others are the primary sponsors of CO SB 21, joined by 21 cosponsors.
Description
The act authorizes the clean fleet enterprise (enterprise) to incentivize, support, and accelerate the replacement of a truck that is part of a fleet and that is powered by a diesel-fueled internal combustion engine, is a model year of 2009 or earlier, and is registered, operable, and capable of independent roadway operation (aging diesel truck) with a diesel truck that is a model year of 2018 or later (new diesel truck) until December 31, 2031. The act also allows the enterprise to provide funding or financing through grant programs, rebate programs, revolving loan funds, or other strategies to help owners and operators of aging diesel truck fleets finance the replacement of aging diesel trucks with new diesel trucks to reduce the up-front costs of acquiring new diesel trucks until December 31, 2031. The enterprise may use the clean fleet enterprise fund to provide money to support the replacement of aging diesel trucks with new diesel trucks, but the enterprise is required to ensure that it does not expend more than 20% of the fund's income during a state fiscal year for the support. To qualify for any money provided by the enterprise for the replacement of aging diesel trucks with new diesel trucks, the act requires a purchaser of the new diesel truck to surrender an aging diesel truck to the seller of the new truck. The seller of the new diesel truck must decommission the aging diesel truck by drilling a hole in the engine's block and cutting the chassis rails in half. The seller must be an authorized dealer of new diesel trucks who must certify that the new diesel truck meets all state and federal emissions and safety standards for its model year. The enterprise must prioritize applications to replace aging diesel trucks from businesses that are privately owned, independently owned, or have limited access to capital. The enterprise is not allowed to accept an application from the owner or operator of a motor vehicle fleet that owns, leases, or operates more than 50 heavy-duty motor vehicles or from a business entity with annual gross revenue exceeding $100 million. The enterprise is required to prioritize the replacement of an aging diesel truck that has a model year of no later than 2006. The act expands the business purpose of the enterprise to include providing incentives and support for refrigerated transport units powered by zero emission technology. The act allows the enterprise to exercise its rights and powers without regard to the state 'Procurement Code'. The act requires the enterprise to annually prepare a report that includes the estimated pollution reduction benefits of the enterprise. The enterprise must seek to ensure that all projects funded by the enterprise achieve measurable results and outcomes.(Note: This summary applies to this bill as enacted.)
- Introduced
- 2026-01-14
- Latest action
- 2026-04-20 — Governor Signed
- Bill type
- bill
- Last updated
- —
Subjects
Sponsors
- R. Stewartsponsor
- M. Lindsaysponsor
- J. Jacksonsponsor
- N. Hinrichsensponsor
- T. Exumsponsor
- A. Paschalsponsor
- C. Barronsponsor
- C. Simpsonsponsor
- K. Mullicasponsor
- J. Baconcosponsor
- K. Wallacecosponsor
- M. Snydercosponsor
- D. Robertscosponsor
- J. Marchmancosponsor
- W. Lindstedtcosponsor
- T. Storycosponsor
- I. Jodehcosponsor
- L. Daughertycosponsor
- J. Colemancosponsor
- M. Catlincosponsor
- A. Benavidezcosponsor
- C. Kippcosponsor
- L. Smithcosponsor
- J. Phillipscosponsor
- K. Nguyencosponsor
- K. McCormickcosponsor
- J. McCluskiecosponsor
- S. Liedercosponsor
- M. Durancosponsor
- A. Boeseneckercosponsor
Committees
Not provided by source.
Action timeline
Newest first
2026-04-20
Governor Signed
executive-signature
2026-04-08
Sent to the Governor
executive-receipt
2026-04-07
Signed by the President of the Senate
passage
2026-04-07
Signed by the Speaker of the House
passage
2026-04-06
Senate Considered House Amendments - Result was to Concur - Repass
2026-04-02
House Third Reading Passed with Amendments - Floor
passage,reading-3
2026-04-01
House Third Reading Laid Over Daily - No Amendments
2026-03-31
House Second Reading Special Order - Passed with Amendments - Floor
2026-03-23
House Second Reading Laid Over Daily - No Amendments
2026-03-20
House Second Reading Special Order - Laid Over Daily - No Amendments
2026-03-17
House Committee on Transportation, Housing & Local Government Refer Unamended to House Committee of the Whole
committee-passage,referral-committee
2026-03-03
Senate Third Reading Passed - No Amendments
passage,reading-3
2026-03-03
Introduced In House - Assigned to Transportation, Housing & Local Government
introduction
2026-03-02
Senate Second Reading Passed with Amendments - Committee
reading-2
2026-02-27
Senate Second Reading Laid Over to 03/02/2026 - No Amendments
2026-02-26
Senate Second Reading Laid Over to 02/27/2026 - No Amendments
2026-02-23
Senate Committee on Transportation & Energy Refer Amended to Senate Committee of the Whole
committee-passage,referral-committee
2026-01-14
Introduced In Senate - Assigned to Transportation & Energy
introduction
Versions
Documents
Votes
Refer Senate Bill 26-021, as amended, to the Committee of the Whole.
2026-02-23 · pass · 0-0
Member-level votes (9)
- Matt Ball: yes
- Lisa Cutter: yes
- Mark Baisley: yes
- Marc Catlin: yes
- Tony Exum: yes
- William Lindstedt: yes
- Byron Pelton: yes
- Tom Sullivan: excused
- Kyle Mullica: yes
Adopt amendment L.005
2026-02-23 · pass · 0-0
Member-level votes (1)
- Tom Sullivan: excused
Adopt amendment L.006
2026-02-23 · pass · 0-0
Member-level votes (1)
- Tom Sullivan: excused
BILL
2026-03-03 · pass · 0-0
Member-level votes (36)
- Amabile: yes
- Baisley: yes
- Ball: yes
- Benavidez: yes
- Bridges: yes
- Bright: yes
- Carson: no
- Catlin: yes
- Cutter: yes
- Danielson: yes
- Daugherty: yes
- Exum: yes
- Frizell: yes
- Gonzales J.: yes
- Hinrichsen: yes
- Jodeh: yes
- Kipp: yes
- Kirkmeyer: yes
- Kolker: yes
- Lindstedt: yes
- Liston: yes
- Marchman: yes
- Mullica: yes
- Pelton B.: yes
- Pelton R.: yes
- Rich: yes
- Roberts: yes
- Rodriguez: yes
- Simpson: yes
- Snyder: yes
- Sullivan: yes
- Wallace: yes
- Weissman: yes
- Zamora Wilson: no
- Coleman: yes
- President: yes
Refer Senate Bill 26-021 to the Committee of the Whole.
2026-03-17 · pass · 0-0
Member-level votes (13)
- Andrew Boesenecker: yes
- Jamie Jackson: excused
- Mandy Lindsay: yes
- Kenny Nguyen: yes
- Amy Paschal: yes
- Chris Richardson: yes
- Elizabeth Velasco: excused
- Rebekah Stewart: yes
- Max Brooks: no
- Jacque Phillips: yes
- Larry Don Suckla: no
- Ron Weinberg: no
- Meg Froelich: yes
REPASS
2026-04-06 · pass · 0-0
Member-level votes (36)
- Amabile: yes
- Baisley: no
- Ball: yes
- Benavidez: yes
- Bridges: yes
- Bright: yes
- Carson: no
- Catlin: yes
- Cutter: yes
- Danielson: yes
- Daugherty: yes
- Exum: yes
- Frizell: yes
- Gonzales J.: yes
- Hinrichsen: yes
- Jodeh: yes
- Kipp: yes
- Kirkmeyer: yes
- Kolker: yes
- Lindstedt: yes
- Liston: yes
- Marchman: yes
- Mullica: yes
- Pelton B.: yes
- Pelton R.: yes
- Rich: no
- Roberts: yes
- Rodriguez: yes
- Simpson: yes
- Snyder: yes
- Sullivan: yes
- Wallace: yes
- Weissman: yes
- Zamora Wilson: no
- Coleman: yes
- President: yes
CONCUR
2026-04-06 · pass · 0-0
Member-level votes (36)
- Amabile: yes
- Baisley: yes
- Ball: yes
- Benavidez: yes
- Bridges: yes
- Bright: yes
- Carson: yes
- Catlin: yes
- Cutter: yes
- Danielson: yes
- Daugherty: yes
- Exum: yes
- Frizell: yes
- Gonzales J.: yes
- Hinrichsen: yes
- Jodeh: yes
- Kipp: yes
- Kirkmeyer: yes
- Kolker: yes
- Lindstedt: yes
- Liston: yes
- Marchman: yes
- Mullica: yes
- Pelton B.: yes
- Pelton R.: yes
- Rich: yes
- Roberts: yes
- Rodriguez: yes
- Simpson: yes
- Snyder: yes
- Sullivan: yes
- Wallace: yes
- Weissman: yes
- Zamora Wilson: yes
- Coleman: yes
- President: yes
Related bills
No related bills recorded for this bill.
Official source
Attribution
Data from openstates_bulk_csv, retrieved 2026-07-24T03:52:26.466301Z
Inspect retained evidence for changes recorded after evidence tracking began:
Session-wide evidence can include changes to other bills:
Use this data
Every field on this page is available from the free public API — no key or licence required. Fetch this bill as JSON: GET /api/v1/bills?jurisdiction=CO&identifier=SB 21. See the API docs or the MCP server for AI assistants.
Known limitations
- Sponsor party and chamber affiliation are not yet captured by this API.
- Committee referrals are not yet captured.
See the methodology page for data sources and limitations.