republic-os/legislation/us/states/co/2025a/hb-25-1183.md

---
type: "Bill"
title: "Colorimetric Field Drug Test Working Group"
description: "The act creates a working group to make findings and recommendations concerning the use of colorimetric field drug tests in the various stages of criminal proceedings and carceral settings. The act specifies the working group's membership and appointing authority, as applicable. The working group is required to:"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2025A"
identifier: "HB 25-1183"
citation: "Colorado HB 25-1183 (2025A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Jennifer Bacon", "Lindsay Gilchrist", "Lindsey Daugherty", "Matt Ball"]
version_count: 11
action_count: 16
vote_count: 5
first_action: "2025-02-10T07:00:00+00:00"
last_action: "2025-06-02T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/69e27599-e5ba-46dc-a0d7-2d56f56d5280"
source_url: "https://leg.colorado.gov/bills/hb25-1183"
source_hash: "d14806457afaa25ba8785cedb3086e00d1e8e43eb3725c4a4ef096b9a0e09392"
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 HB 25-1183 (2025A) — Colorimetric Field Drug Test Working Group

The act creates a working group to make findings and recommendations concerning the use of colorimetric field drug tests in the various stages of criminal proceedings and carceral settings. The act specifies the working group's membership and appointing authority, as applicable. The working group is required to:

## 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_hb1183_s_jud_001.pdf)
2. **Engrossed (04/15/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_eng.pdf)
3. **Final Act (05/15/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_enr.pdf)
4. **Introduced (02/10/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_01.pdf)
5. **PA1 (03/03/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_h_jud_01.pdf)
6. **PA2 (04/06/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_h_jud_app_01.pdf)
7. **PA3 (04/24/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_s_jud_01.pdf)
8. **Reengrossed (04/16/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_ren.pdf)
9. **Rerevised (04/29/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_rer.pdf)
10. **Revised (04/28/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_1183_rev.pdf)
11. **Signed Act (06/02/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2025a_1183_signed.pdf)

## Votes

- BILL — **40–25** (pass) · lower
- CONCUR — **43–22** (pass) · lower
- REPASS — **42–23** (pass) · lower
- AMD — **25–39** (fail) · lower
- BILL — **23–9** (pass) · upper

## Sponsors

- Jennifer Bacon — primary (person)
- Lindsay Gilchrist — primary (person)
- Lindsey Daugherty — primary (person)
- Matt Ball — primary (person)
- C. Espenoza — cosponsor (person)
- E. Velasco — cosponsor (person)
- I. Jodeh — cosponsor (person)
- J. Amabile — cosponsor (person)
- J. Mabrey — cosponsor (person)
- L. Cutter — cosponsor (person)
- M. Carter — cosponsor (person)
- M. Weissman — cosponsor (person)
- N. Ricks — cosponsor (person)
- Y. Zokaie — cosponsor (person)

## Timeline

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

- **2025-06-02T06:00:00+00:00** Governor Signed `executive-signature`
- **2025-05-15T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2025-05-15T06:00:00+00:00** Signed by the President of the Senate
- **2025-05-15T06:00:00+00:00** Signed by the Speaker of the House
- **2025-05-01T06:00:00+00:00** House Considered Senate Amendments - Result was to Concur - Repass
- **2025-04-30T06:00:00+00:00** House Considered Senate Amendments - Result was to Laid Over Daily
- **2025-04-29T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2025-04-28T06:00:00+00:00** Senate Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2025-04-23T06:00:00+00:00** Senate Committee on Judiciary Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2025-04-21T06:00:00+00:00** Introduced In Senate - Assigned to Judiciary `introduction`
- **2025-04-16T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2025-04-15T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2025-04-08T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2025-04-04T06:00:00+00:00** House Committee on Appropriations Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2025-02-26T07:00:00+00:00** House Committee on Judiciary Refer Amended to Appropriations `referral-committee`
- **2025-02-10T07:00:00+00:00** Introduced In House - Assigned to Judiciary `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/69e27599-e5ba-46dc-a0d7-2d56f56d5280`. Confidence: reported (aggregated from official Colorado legislature records).