---
type: "Bill"
title: "America 250 - Colorado 150 Commission"
description: "The act expands the America 250 - Colorado 150 commission (commission) from 15 to 21 voting members by adding the following members to be appointed by the governor:"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2024A"
identifier: "SB 24-170"
citation: "Colorado SB 24-170 (2024A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Barbara Kirkmeyer", "Barbara McLachlan", "Rachel Zenzinger", "Shannon Bird"]
version_count: 10
action_count: 15
vote_count: 4
first_action: "2024-02-29T07:00:00+00:00"
last_action: "2024-06-06T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/4628f7e7-0aef-45cd-8a3c-d7905b9f8147"
source_url: "https://leg.colorado.gov/bills/sb24-170"
source_hash: "6d590e057f047b3edee11237460f2181da42d34c6c70ef5f28b450cb57165500"
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 24-170 (2024A) — America 250 - Colorado 150 Commission

The act expands the America 250 - Colorado 150 commission (commission) from 15 to 21 voting members by adding the following members to be appointed by the governor:

## 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/2024a_sb170_h_app_001.pdf)
2. **Engrossed (04/01/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_170_eng.pdf)
3. **Final Act (05/14/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_170_enr.pdf)
4. **Introduced (02/29/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_170_01.pdf)
5. **PA1 (03/28/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_170_s_sa_01.pdf)
6. **PA2 (04/09/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_170_h_sa_01.pdf)
7. **Reengrossed (04/02/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_170_ren.pdf)
8. **Rerevised (05/07/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_170_rer.pdf)
9. **Revised (05/06/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_170_rv2.pdf)
10. **Signed Act (06/06/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2024a_170_signed.pdf)

## Votes

- BILL — **52–10** (pass) · lower
- BILL — **35–0** (pass) · upper
- REPASS — **32–2** (pass) · upper
- CONCUR — **33–1** (pass) · upper

## Sponsors

- Barbara Kirkmeyer — primary (person)
- Barbara McLachlan — primary (person)
- Rachel Zenzinger — primary (person)
- Shannon Bird — primary (person)

## Timeline

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

- **2024-06-06T06:00:00+00:00** Governor Signed `executive-signature`
- **2024-05-15T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2024-05-14T06:00:00+00:00** Signed by the Speaker of the House
- **2024-05-14T06:00:00+00:00** Signed by the President of the Senate
- **2024-05-08T06:00:00+00:00** Senate Considered House Amendments - Result was to Concur - Repass
- **2024-05-07T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2024-05-06T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee
- **2024-04-30T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2024-04-26T06:00:00+00:00** House Committee on Appropriations Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2024-04-08T06:00:00+00:00** House Committee on State, Civic, Military, & Veterans Affairs Refer Amended to Appropriations `referral-committee`
- **2024-04-02T06:00:00+00:00** Introduced In House - Assigned to State, Civic, Military, & Veterans Affairs `introduction`
- **2024-04-02T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2024-04-01T06:00:00+00:00** Senate Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2024-03-27T06:00:00+00:00** Senate Committee on State, Veterans, & Military Affairs Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2024-02-29T07:00:00+00:00** Introduced In Senate - Assigned to State, Veterans, & Military Affairs `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/4628f7e7-0aef-45cd-8a3c-d7905b9f8147`. Confidence: reported (aggregated from official Colorado legislature records).