---
type: "Bill"
title: "Authority Attorney General Challenge Fed-reviewed Mergers And Antitrust"
description: "The act repeals a prohibition against the state attorney general challenging a business merger or acquisition when the merger or acquisition has been reviewed and not challenged by a federal department, agency, or commission."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2020A"
identifier: "SB 20-064"
citation: "Colorado SB 20-064 (2020A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Kerry Tipper", "Matt Soper", "Mike Foote"]
version_count: 8
action_count: 12
vote_count: 2
first_action: "2020-01-08T07:00:00+00:00"
last_action: "2020-03-20T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/e8e48a92-72c1-428c-b700-9ca667b653aa"
source_url: "http://leg.colorado.gov/bills/sb20-064"
source_hash: "0fec329b7be925c199226a3a8f75a96bf9624f7e6b0bef361b91bb0717494a5d"
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 20-064 (2020A) — Authority Attorney General Challenge Fed-reviewed Mergers And Antitrust

The act repeals a prohibition against the state attorney general challenging a business merger or acquisition when the merger or acquisition has been reviewed and not challenged by a federal department, agency, or commission.

## 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/2020a_sb064_h_jud_001.pdf)
2. **Engrossed (02/10/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_064_eng.pdf)
3. **Final Act (03/14/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_064_enr.pdf)
4. **Introduced (01/08/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_064_01.pdf)
5. **Reengrossed (02/11/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_064_ren.pdf)
6. **Rerevised (03/04/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_064_rer.pdf)
7. **Revised (03/03/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_064_rev.pdf)
8. **Signed Act (03/20/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2020a_064_signed.pdf)

## Votes

- BILL — **41–23** (pass) · lower
- BILL — **19–14** (pass) · upper

## Sponsors

- Kerry Tipper — primary (person)
- Matt Soper — primary (person)
- Mike Foote — primary (person)

## Timeline

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

- **2020-03-20T06:00:00+00:00** Governor Signed `executive-signature`
- **2020-03-14T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2020-03-14T06:00:00+00:00** Signed by the Speaker of the House
- **2020-03-14T06:00:00+00:00** Signed by the President of the Senate
- **2020-03-04T07:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
- **2020-03-03T07:00:00+00:00** House Second Reading Passed - No Amendments `reading-2`
- **2020-02-27T07:00:00+00:00** House Committee on Judiciary Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2020-02-13T07:00:00+00:00** Introduced In House - Assigned to Judiciary `introduction`
- **2020-02-11T07:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2020-02-10T07:00:00+00:00** Senate Second Reading Passed - No Amendments `reading-2`
- **2020-02-05T07:00:00+00:00** Senate Committee on Judiciary Refer Unamended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2020-01-08T07:00:00+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/e8e48a92-72c1-428c-b700-9ca667b653aa`. Confidence: reported (aggregated from official Colorado legislature records).