---
type: "Bill"
title: "Study Of Devices Assessing Motorist Impairment"
description: "The act establishes a study to investigate devices that are capable of assessing cognitive and physical impairment of motorists to detect the presence of drugs other than alcohol during roadside sobriety investigations."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2022A"
identifier: "HB 22-1321"
citation: "Colorado HB 22-1321 (2022A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Brittany Pettersen", "Dylan Roberts", "Hugh McKean", "Rob Woodward"]
version_count: 10
action_count: 13
vote_count: 2
first_action: "2022-03-24T06:00:00+00:00"
last_action: "2022-06-08T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/d97d5608-c951-4c77-968a-99f4cc0b02f3"
source_url: "https://leg.colorado.gov/bills/hb22-1321"
source_hash: "f09674cf7dd176fd86324b4424e58229fe0a1b100e59226ccbfd7c26be1db2cd"
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 22-1321 (2022A) — Study Of Devices Assessing Motorist Impairment

The act establishes a study to investigate devices that are capable of assessing cognitive and physical impairment of motorists to detect the presence of drugs other than alcohol during roadside sobriety investigations.

## 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/2022a_hb1321_s_app_003.pdf)
2. **Engrossed (04/29/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_1321_eng.pdf)
3. **Final Act (05/31/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_1321_enr.pdf)
4. **Introduced (03/24/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_1321_01.pdf)
5. **PA1 (04/07/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_1321_h_jud_01.pdf)
6. **PA2 (04/29/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_1321_h_jud_app_01.pdf)
7. **Reengrossed (05/02/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_1321_ren.pdf)
8. **Rerevised (05/10/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_1321_rer.pdf)
9. **Revised (05/09/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_1321_rev.pdf)
10. **Signed Act (06/08/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2022a_1321_signed.pdf)

## Votes

- BILL — **54–11** (pass) · lower
- BILL — **32–2** (pass) · upper

## Sponsors

- Brittany Pettersen — primary (person)
- Dylan Roberts — primary (person)
- Hugh McKean — primary (person)
- Rob Woodward — primary (person)

## Timeline

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

- **2022-06-08T06:00:00+00:00** Governor Signed `executive-signature`
- **2022-05-31T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2022-05-31T06:00:00+00:00** Signed by the President of the Senate
- **2022-05-26T06:00:00+00:00** Signed by the Speaker of the House
- **2022-05-10T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2022-05-09T06:00:00+00:00** Senate Second Reading Special Order - Passed - No Amendments
- **2022-05-09T06:00:00+00:00** Senate Committee on Appropriations Refer Unamended - Consent Calendar to Senate Committee of the Whole `committee-passage`
- **2022-05-02T06:00:00+00:00** Introduced In Senate - Assigned to Appropriations `introduction`
- **2022-05-02T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2022-04-29T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee
- **2022-04-29T06:00:00+00:00** House Committee on Appropriations Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2022-04-05T06:00:00+00:00** House Committee on Judiciary Refer Amended to Appropriations `referral-committee`
- **2022-03-24T06:00:00+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/d97d5608-c951-4c77-968a-99f4cc0b02f3`. Confidence: reported (aggregated from official Colorado legislature records).