---
type: "Bill"
title: "Firearms Merchant Category Code"
description: "The act requires certain networks that facilitate payment transactions to make the merchant category code for firearms and ammunition available to merchant acquirers (processor) who process transactions for firearms merchants. A processor must assign the code to each firearms merchant to which the processor provides services."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2024A"
identifier: "SB 24-066"
citation: "Colorado SB 24-066 (2024A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Javier Mabrey", "Meg Froelich", "Tom Sullivan"]
version_count: 9
action_count: 17
vote_count: 6
first_action: "2024-01-22T07:00:00+00:00"
last_action: "2024-05-01T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/b88eb8b0-424b-4f11-8431-bfb9d99699df"
source_url: "https://leg.colorado.gov/bills/sb24-066"
source_hash: "8cf1c0c89ea10fca3e9d78aa74ca63eed1aaf931417547e0ae173bcb4da3708e"
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 24-066 (2024A) — Firearms Merchant Category Code

The act requires certain networks that facilitate payment transactions to make the merchant category code for firearms and ammunition available to merchant acquirers (processor) who process transactions for firearms merchants. A processor must assign the code to each firearms merchant to which the processor provides services.

## 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_sb066_h_bus_001.pdf)
2. **Engrossed (02/20/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_066_eng.pdf)
3. **Final Act (04/22/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_066_enr.pdf)
4. **Introduced (01/22/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_066_01.pdf)
5. **PA1 (02/09/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_066_s_blt_01.pdf)
6. **Reengrossed (02/21/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_066_ren.pdf)
7. **Rerevised (04/08/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_066_rer.pdf)
8. **Revised (04/03/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_066_rev.pdf)
9. **Signed Act (05/01/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2024a_066_signed.pdf)

## Votes

- AMD — **19–40** (fail) · lower
- BILL — **38–21** (pass) · lower
- AMD — **21–38** (fail) · lower
- AMD — **21–38** (fail) · lower
- BILL — **22–11** (pass) · upper
- COW * — **12–22** (fail) · upper

## Sponsors

- Javier Mabrey — primary (person)
- Meg Froelich — primary (person)
- Tom Sullivan — primary (person)

## Timeline

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

- **2024-05-01T06:00:00+00:00** Governor Signed `executive-signature`
- **2024-04-22T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2024-04-22T06:00:00+00:00** Signed by the Speaker of the House
- **2024-04-19T06:00:00+00:00** Signed by the President of the Senate
- **2024-04-08T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2024-04-04T06:00:00+00:00** House Third Reading Laid Over Daily - No Amendments
- **2024-04-03T06:00:00+00:00** House Second Reading Special Order - Passed - No Amendments
- **2024-04-02T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2024-03-27T06:00:00+00:00** House Committee on Business Affairs & Labor Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2024-02-21T07:00:00+00:00** Introduced In House - Assigned to Business Affairs & Labor `introduction`
- **2024-02-21T07:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2024-02-20T07:00:00+00:00** Senate Second Reading Passed with Amendments - Committee `reading-2`
- **2024-02-14T07:00:00+00:00** Senate Second Reading Laid Over to 02/20/24 - No Amendments
- **2024-02-13T07:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
- **2024-02-12T07:00:00+00:00** Senate Second Reading Laid Over to 02/13/24 - No Amendments
- **2024-02-08T07:00:00+00:00** Senate Committee on Business, Labor, & Technology Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2024-01-22T07:00:00+00:00** Introduced In Senate - Assigned to Business, Labor, & Technology `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/b88eb8b0-424b-4f11-8431-bfb9d99699df`. Confidence: reported (aggregated from official Colorado legislature records).