---
type: "Bill"
title: "Deter Tampering Motor Vehicle Emission Control System"
description: "Section 5 of the act prohibits a person, on or after January 1, 2024, from tampering with a motor vehicle's emission control system, conveying or offering to convey a motor vehicle with an emission control system that has been tampered with, or operating a motor vehicle with an emission control system that has been tampered with (anti-tampering provisions)."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2022A"
identifier: "SB 22-179"
citation: "Colorado SB 22-179 (2022A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Joann Ginal", "Larry Liston", "Susan Lontine"]
version_count: 10
action_count: 15
vote_count: 2
first_action: "2022-03-25T06:00:00+00:00"
last_action: "2022-06-08T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/3e466ae8-4e07-4ce2-b93d-7deb6121969f"
source_url: "https://leg.colorado.gov/bills/sb22-179"
source_hash: "0b7073a78d2b1631a17b1d264140f14005fcbaa9c60f29160216a7f7e1fe2633"
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 22-179 (2022A) — Deter Tampering Motor Vehicle Emission Control System

Section 5 of the act prohibits a person, on or after January 1, 2024, from tampering with a motor vehicle's emission control system, conveying or offering to convey a motor vehicle with an emission control system that has been tampered with, or operating a motor vehicle with an emission control system that has been tampered with (anti-tampering provisions).

## 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_sb179_h_app_002.pdf)
2. **Engrossed (05/03/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_179_eng.pdf)
3. **Final Act (05/20/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_179_enr.pdf)
4. **Introduced (03/25/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_179_01.pdf)
5. **PA1 (04/18/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_179_s_jud_01.pdf)
6. **PA2 (05/03/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_179_s_jud_app_01.pdf)
7. **Reengrossed (05/04/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_179_ren.pdf)
8. **Rerevised (05/11/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_179_rer.pdf)
9. **Revised (05/10/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2022A/bills/2022a_179_rev.pdf)
10. **Signed Act (06/08/2022)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2022a_179_signed.pdf)

## Votes

- BILL — **40–23** (pass) · lower
- BILL — **30–4** (pass) · upper

## Sponsors

- Joann Ginal — primary (person)
- Larry Liston — primary (person)
- Susan Lontine — primary (person)

## Timeline

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

- **2022-06-08T06:00:00+00:00** Governor Signed `executive-signature`
- **2022-05-20T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2022-05-20T06:00:00+00:00** Signed by the Speaker of the House
- **2022-05-20T06:00:00+00:00** Signed by the President of the Senate
- **2022-05-11T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2022-05-10T06:00:00+00:00** House Second Reading Special Order - Passed - No Amendments
- **2022-05-09T06:00:00+00:00** House Second Reading Special Order - Laid Over Daily - No Amendments
- **2022-05-09T06:00:00+00:00** House Committee on Appropriations Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2022-05-05T06:00:00+00:00** House Committee on Business Affairs & Labor Refer Unamended to Appropriations `referral-committee`
- **2022-05-04T06:00:00+00:00** Introduced In House - Assigned to Business Affairs & Labor `introduction`
- **2022-05-04T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2022-05-03T06:00:00+00:00** Senate Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2022-05-03T06:00:00+00:00** Senate Committee on Appropriations Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2022-04-14T06:00:00+00:00** Senate Committee on Judiciary Refer Amended to Appropriations `referral-committee`
- **2022-03-25T06:00:00+00:00** Introduced In Senate - 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/3e466ae8-4e07-4ce2-b93d-7deb6121969f`. Confidence: reported (aggregated from official Colorado legislature records).