---
type: "Bill"
title: "Appropriate Use Of Chemical Restraints On A Person"
description: "When a peace officer is present at the scene of an emergency, an emergency medical service provider (EMS provider) authorized to administer ketamine in a prehospital setting shall only administer ketamine if the EMS provider has:Weighed the individual to ensure accurate dosage or estimated the individual's weight with the agreement of at least 2 personnel trained in weight assessment if the EMS provider is unable to weigh the individual;"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2021A"
identifier: "HB 21-1251"
citation: "Colorado HB 21-1251 (2021A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Julie Gonzales", "Leslie Herod", "Rhonda Fields", "Yadira Caraveo"]
version_count: 11
action_count: 19
vote_count: 17
first_action: "2021-03-30T06:00:00+00:00"
last_action: "2021-07-06T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/e0fa3683-dcc8-49f9-914b-a514bab35c2e"
source_url: "http://leg.colorado.gov/bills/hb21-1251"
source_hash: "4675076c3ff67181fd294683890e2479444dfb546e01a980743e53056a59ff93"
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 21-1251 (2021A) — Appropriate Use Of Chemical Restraints On A Person

When a peace officer is present at the scene of an emergency, an emergency medical service provider (EMS provider) authorized to administer ketamine in a prehospital setting shall only administer ketamine if the EMS provider has:Weighed the individual to ensure accurate dosage or estimated the individual's weight with the agreement of at least 2 personnel trained in weight assessment if the EMS provider is unable to weigh the individual;

## Version chain

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

1. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2021a_hb1251_s_app_002.pdf)
2. **Engrossed (05/13/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251_eng.pdf)
3. **Final Act (06/22/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251_enr.pdf)
4. **Introduced (03/30/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251_01.pdf)
5. **PA1 (04/29/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251jud_01.pdf)
6. **PA2 (05/25/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251sjud_01.pdf)
7. **PA3 (05/28/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251sjudapp.pdf)
8. **Reengrossed (05/14/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251_ren.pdf)
9. **Rerevised (06/01/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251_rer.pdf)
10. **Revised (05/28/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1251_rev.pdf)
11. **Signed Act (07/06/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2021a_1251_signed.pdf)

## Votes

- AMD — **22–38** (fail) · lower
- REPASS — **21–13** (pass) · upper
- BILL — **20–15** (pass) · upper
- AMD — **24–36** (fail) · lower
- AMD — **23–37** (fail) · lower
- NOT CNCR — **40–24** (pass) · lower
- ADOPT — **42–23** (pass) · lower
- ADOPT CCR — **21–13** (pass) · upper
- AMD — **22–38** (fail) · lower
- AMD — **23–37** (fail) · lower
- AMD — **23–37** (fail) · lower
- COW * — **33–0** (pass) · upper
- REPASS — **21–13** (pass) · upper
- AMD — **23–37** (fail) · lower
- REPASS — **20–15** (pass) · upper
- REPASS — **40–25** (pass) · lower
- BILL — **37–25** (pass) · lower

## Sponsors

- Julie Gonzales — primary (person)
- Leslie Herod — primary (person)
- Rhonda Fields — primary (person)
- Yadira Caraveo — primary (person)

## Timeline

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

- **2021-07-06T06:00:00+00:00** Governor Signed `executive-signature`
- **2021-06-22T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2021-06-22T06:00:00+00:00** Signed by the Speaker of the House
- **2021-06-22T06:00:00+00:00** Signed by the President of the Senate
- **2021-06-04T06:00:00+00:00** Senate Consideration of First Conference Committee Report result was to Adopt Committee Report - Repass
- **2021-06-04T06:00:00+00:00** First Conference Committee Result was to Adopt Rerevised w/ Amendments
- **2021-06-03T06:00:00+00:00** House Considered Senate Amendments - Result was to Not Concur - Request Conference Committee
- **2021-06-02T06:00:00+00:00** House Considered Senate Amendments - Result was to Laid Over Daily
- **2021-06-01T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2021-05-28T06:00:00+00:00** Senate Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2021-05-28T06:00:00+00:00** Senate Committee on Appropriations Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2021-05-24T06:00:00+00:00** Senate Committee on Judiciary Refer Amended to Appropriations `referral-committee`
- **2021-05-17T06:00:00+00:00** Introduced In Senate - Assigned to Judiciary `introduction`
- **2021-05-14T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2021-05-13T06:00:00+00:00** House Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2021-05-05T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2021-05-03T06:00:00+00:00** House Second Reading Laid Over to 05/05/2021 - No Amendments
- **2021-04-28T06:00:00+00:00** House Committee on Judiciary Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2021-03-30T06:00:00+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/e0fa3683-dcc8-49f9-914b-a514bab35c2e`. Confidence: reported (aggregated from official Colorado legislature records).