republic-os/legislation/us/states/co/2018a/sb-18-172.md

---
type: "Bill"
title: "Horse Racing Licensee Alcohol And Drug Testing"
description: "The bill adds to the responsibilities of the Colorado racing commission the protection of all participants, human and animal, involved in horse racing. The commission shall promulgate rules to ensure fair play, human and animal safety, and integrity in the sport of horse racing. The commission shall designate categories of licensees subject to for-cause testing or random testing to detect the presence of prohibited substances."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2018A"
identifier: "SB 18-172"
citation: "Colorado SB 18-172 (2018A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Bob Gardner", "Pete Lee"]
version_count: 8
action_count: 19
vote_count: 2
first_action: "2018-02-21T07:00:00+00:00"
last_action: "2018-04-12T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/e7485d9f-7fcb-42e6-b0da-4bf8e744cb8b"
source_url: "http://leg.colorado.gov/bills/sb18-172"
source_hash: "0228308fd2a7ff0c9ce179c0f42cb7aa984d5b41118e73d738ba3f74c024e3aa"
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 18-172 (2018A) — Horse Racing Licensee Alcohol And Drug Testing

The bill adds to the responsibilities of the Colorado racing commission the protection of all participants, human and animal, involved in horse racing. The commission shall promulgate rules to ensure fair play, human and animal safety, and integrity in the sport of horse racing. The commission shall designate categories of licensees subject to for-cause testing or random testing to detect the presence of prohibited substances.

## 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/documents/2018a/bills/cr/2018a_sb172_h_jud_001.pdf)
2. **Engrossed (03/12/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_172_eng.pdf)
3. **Final Act (04/11/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_172_enr.pdf)
4. **Introduced (02/21/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_172_01.pdf)
5. **PA1 (03/01/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_172sagr_001_01.pdf)
6. **Reengrossed (03/13/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_172_ren.pdf)
7. **Rerevised (04/03/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_172_rer.pdf)
8. **Revised (04/02/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_172_rev.pdf)

## Votes

- BILL — **52–12** (pass) · lower
- BILL — **33–2** (pass) · lower

## Sponsors

- Bob Gardner — primary (person)
- Pete Lee — primary (person)

## Timeline

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

- **2018-04-12T06:00:00+00:00** Governor Signed `executive-signature`
- **2018-04-11T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2018-04-11T06:00:00+00:00** Signed by the Speaker of the House
- **2018-04-10T06:00:00+00:00** Signed by the President of the Senate
- **2018-04-03T06:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
- **2018-04-02T06:00:00+00:00** House Second Reading Passed - No Amendments `reading-2`
- **2018-03-29T06:00:00+00:00** House Second Reading Laid Over to 04/02/2018 - No Amendments
- **2018-03-28T06:00:00+00:00** House Second Reading Laid Over to 03/29/2018 - No Amendments
- **2018-03-27T06:00:00+00:00** House Second Reading Laid Over to 03/28/2018 - No Amendments
- **2018-03-26T06:00:00+00:00** House Second Reading Laid Over to 03/27/2018 - No Amendments
- **2018-03-23T06:00:00+00:00** House Second Reading Laid Over to 03/26/2018 - No Amendments
- **2018-03-20T06:00:00+00:00** House Committee on Judiciary Refer Unamended to House Committee of the Whole `referral-committee, committee-passage`
- **2018-03-14T06:00:00+00:00** Introduced In House - Assigned to Judiciary `introduction`
- **2018-03-13T06:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2018-03-12T06:00:00+00:00** Senate Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2018-03-08T07:00:00+00:00** Senate Second Reading Laid Over to 03/12/2018 - No Amendments
- **2018-03-05T07:00:00+00:00** Senate Second Reading Laid Over to 03/08/2018 - No Amendments
- **2018-02-28T07:00:00+00:00** Senate Committee on Agriculture, Natural Resources, & Energy Refer Amended to Senate Committee of the Whole `referral-committee, committee-passage`
- **2018-02-21T07:00:00+00:00** Introduced In Senate - Assigned to Agriculture, Natural Resources, & Energy `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/e7485d9f-7fcb-42e6-b0da-4bf8e744cb8b`. Confidence: reported (aggregated from official Colorado legislature records).