---
type: "Bill"
title: "Regional Transportation District Operating Costs"
description: "The act changes the definition of \"operating costs\" for purposes of reporting cost efficiency metrics by the regional transportation district from including depreciation and excluding costs incurred in long-term planning and development of mass transportation and rapid transit infrastructures and the costs incurred as a result of providing transportation services mandated by the federal \"Americans with Disabilities Act of 1990\" to instead include all operating expenditures, excluding depreciation."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2025A"
identifier: "SB 25-051"
citation: "Colorado SB 25-051 (2025A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Dafna Michaelson Jenet", "Rod Pelton", "William Lindstedt"]
version_count: 8
action_count: 13
vote_count: 2
first_action: "2025-01-15T07:00:00+00:00"
last_action: "2025-04-07T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/a51a1508-5290-47fd-a375-aedd1c2a4fe9"
source_url: "https://leg.colorado.gov/bills/sb25-051"
source_hash: "384ee074714fa49e85559272216a3bf4077302ac9744ef09e871b7572ba9fae9"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-co"]
---

# Colorado SB 25-051 (2025A) — Regional Transportation District Operating Costs

The act changes the definition of "operating costs" for purposes of reporting cost efficiency metrics by the regional transportation district from including depreciation and excluding costs incurred in long-term planning and development of mass transportation and rapid transit infrastructures and the costs incurred as a result of providing transportation services mandated by the federal "Americans with Disabilities Act of 1990" to instead include all operating expenditures, excluding depreciation.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Committee Amendment** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2025a_sb051_h_thl_001.pdf)
2. **Engrossed (02/03/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_051_eng.pdf)
3. **Final Act (03/28/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_051_enr.pdf)
4. **Introduced (01/15/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_051_01.pdf)
5. **Reengrossed (02/04/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_051_ren.pdf)
6. **Rerevised (03/25/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_051_rer.pdf)
7. **Revised (03/20/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_051_rev.pdf)
8. **Signed Act (04/07/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2025a_051_signed.pdf)

## Votes

- BILL — **35–0** (pass) · upper
- BILL — **60–1** (pass) · lower

## Sponsors

- Dafna Michaelson Jenet — primary (person)
- Rod Pelton — primary (person)
- William Lindstedt — primary (person)
- F. Winter — cosponsor (person)
- I. Jodeh — cosponsor (person)
- J. Coleman — cosponsor (person)
- M. Weissman — cosponsor (person)
- N. Hinrichsen — cosponsor (person)
- S. Bird — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2025-04-07T06:00:00+00:00** Governor Signed `executive-signature`
- **2025-03-28T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2025-03-28T06:00:00+00:00** Signed by the Speaker of the House
- **2025-03-28T06:00:00+00:00** Signed by the President of the Senate
- **2025-03-25T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2025-03-21T06:00:00+00:00** House Third Reading Laid Over Daily - No Amendments
- **2025-03-20T06:00:00+00:00** House Second Reading Special Order - Passed - No Amendments
- **2025-03-19T06:00:00+00:00** House Committee on Transportation, Housing & Local Government Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2025-02-06T07:00:00+00:00** Introduced In House - Assigned to Transportation, Housing & Local Government `introduction`
- **2025-02-04T07:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2025-02-03T07:00:00+00:00** Senate Second Reading Passed - No Amendments `reading-2`
- **2025-01-29T07:00:00+00:00** Senate Committee on Transportation & Energy Refer Unamended - Consent Calendar to Senate Committee of the Whole `committee-passage`
- **2025-01-15T07:00:00+00:00** Introduced In Senate - Assigned to Transportation & Energy `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/a51a1508-5290-47fd-a375-aedd1c2a4fe9`. Confidence: reported (aggregated from official Colorado legislature records).