---
type: "Bill"
title: "Advance The Use Of Clean Hydrogen"
description: "Section 2 of the act defines clean hydrogen (clean hydrogen) as hydrogen that is:"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2023A"
identifier: "HB 23-1281"
citation: "Colorado HB 23-1281 (2023A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Brianna Titone", "Kevin Priola", "Lisa Cutter", "Stephanie Vigil"]
version_count: 11
action_count: 16
vote_count: 2
first_action: "2023-04-03T06:00:00+00:00"
last_action: "2023-05-22T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/db3eb3e6-6bcf-414b-9a86-5e5b649c6260"
source_url: "https://leg.colorado.gov/bills/hb23-1281"
source_hash: "710713ccbca32b0c6eb45f149d8043b886f66aef4044fb9e0d4bae9ffcf9827b"
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 HB 23-1281 (2023A) — Advance The Use Of Clean Hydrogen

Section 2 of the act defines clean hydrogen (clean hydrogen) as hydrogen that is:

## 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/2023a_hb1281_s_app_003.pdf)
2. **Engrossed (04/29/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_en2.pdf)
3. **Final Act (05/10/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_enr.pdf)
4. **Introduced (04/03/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_01.pdf)
5. **PA1 (04/24/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_h_ene_01.pdf)
6. **PA2 (04/28/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_h_ene_fin_01.pdf)
7. **PA3 (04/29/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_h_ene_fin_app_01.pdf)
8. **Reengrossed (05/01/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_ren.pdf)
9. **Rerevised (05/06/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_rer.pdf)
10. **Revised (05/05/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1281_rev.pdf)
11. **Signed Act (05/22/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2023a_1281_signed.pdf)

## Votes

- BILL — **23–11** (pass) · upper
- BILL — **48–15** (pass) · lower

## Sponsors

- Brianna Titone — primary (person)
- Kevin Priola — primary (person)
- Lisa Cutter — primary (person)
- Stephanie Vigil — primary (person)

## Timeline

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

- **2023-05-22T06:00:00+00:00** Governor Signed `executive-signature`
- **2023-05-11T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2023-05-10T06:00:00+00:00** Signed by the President of the Senate
- **2023-05-10T06:00:00+00:00** Signed by the Speaker of the House
- **2023-05-06T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2023-05-05T06:00:00+00:00** Senate Second Reading Special Order - Passed - No Amendments
- **2023-05-05T06:00:00+00:00** Senate Committee on Appropriations Refer Unamended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2023-05-04T06:00:00+00:00** Senate Committee on Finance Refer Unamended to Appropriations `referral-committee`
- **2023-05-01T06:00:00+00:00** Introduced In Senate - Assigned to Finance `introduction`
- **2023-05-01T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2023-04-29T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2023-04-29T06:00:00+00:00** House Committee on Appropriations Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2023-04-27T06:00:00+00:00** House Committee on Finance Refer Amended to Appropriations `referral-committee`
- **2023-04-24T06:00:00+00:00** House Committee on Finance Witness Testimony and/or Committee Discussion Only
- **2023-04-20T06:00:00+00:00** House Committee on Energy & Environment Refer Amended to Finance `referral-committee`
- **2023-04-03T06:00:00+00:00** Introduced In House - Assigned to Energy & Environment `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/db3eb3e6-6bcf-414b-9a86-5e5b649c6260`. Confidence: reported (aggregated from official Colorado legislature records).