---
type: "Bill"
title: "Prader-Willi Syndrome"
description: "The act updates information associated with Prader-Willi syndrome to conform to current laws and regulations."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2023A"
identifier: "HB 23-1040"
citation: "Colorado HB 23-1040 (2023A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Lisa Cutter", "Lisa Frizell", "Rod Pelton", "Sheila Lieder"]
version_count: 8
action_count: 12
vote_count: 2
first_action: "2023-01-09T07:00:00+00:00"
last_action: "2023-03-31T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/78a0ef2b-ce4a-4dc5-85b8-0190ffe0ce34"
source_url: "https://leg.colorado.gov/bills/hb23-1040"
source_hash: "76d33db966a834f900b85a8b13742e18d106140cdb3a9f9932c06cd385db129e"
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 23-1040 (2023A) — Prader-Willi Syndrome

The act updates information associated with Prader-Willi syndrome to conform to current laws and regulations.

## 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_hb1040_s_hhs_001.pdf)
2. **Engrossed (02/02/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1040_eng.pdf)
3. **Final Act (03/22/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1040_enr.pdf)
4. **Introduced (01/09/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1040_01.pdf)
5. **Reengrossed (02/03/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1040_ren.pdf)
6. **Rerevised (03/15/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1040_rer.pdf)
7. **Revised (03/14/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1040_rev.pdf)
8. **Signed Act (03/31/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2023a_1040_signed.pdf)

## Votes

- BILL — **34–0** (pass) · upper
- BILL — **61–0** (pass) · lower

## Sponsors

- Lisa Cutter — primary (person)
- Lisa Frizell — primary (person)
- Rod Pelton — primary (person)
- Sheila Lieder — primary (person)

## Timeline

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

- **2023-03-31T06:00:00+00:00** Governor Signed `executive-signature`
- **2023-03-23T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2023-03-22T06:00:00+00:00** Signed by the President of the Senate
- **2023-03-21T06:00:00+00:00** Signed by the Speaker of the House
- **2023-03-15T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2023-03-14T06:00:00+00:00** Senate Second Reading Passed - No Amendments `reading-2`
- **2023-03-09T07:00:00+00:00** Senate Committee on Health & Human Services Refer Unamended - Consent Calendar to Senate Committee of the Whole `committee-passage`
- **2023-02-06T07:00:00+00:00** Introduced In Senate - Assigned to Health & Human Services `introduction`
- **2023-02-03T07:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2023-02-02T07:00:00+00:00** House Second Reading Special Order - Passed - No Amendments
- **2023-01-31T07:00:00+00:00** House Committee on Health & Insurance Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2023-01-09T07:00:00+00:00** Introduced In House - Assigned to Health & Insurance `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/78a0ef2b-ce4a-4dc5-85b8-0190ffe0ce34`. Confidence: reported (aggregated from official Colorado legislature records).