---
type: "Bill"
title: "Increase Syphilis Testing During Pregnancy"
description: "Effective January 1, 2025, the act repeals the existing statutory requirement to test a person who is pregnant for syphilis at the person's first professional visit with a health-care provider or during the first trimester of pregnancy."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2024A"
identifier: "HB 24-1456"
citation: "Colorado HB 24-1456 (2024A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Dafna Michaelson Jenet", "Julia Marvin", "Lindsey Daugherty"]
version_count: 9
action_count: 13
vote_count: 2
first_action: "2024-04-15T06:00:00+00:00"
last_action: "2024-06-05T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/1b0c77be-3433-475e-a93f-b9313e3cc017"
source_url: "https://leg.colorado.gov/bills/hb24-1456"
source_hash: "a78e3a7b2166f7f635a6cd4c0ccb49f056282d31e3b7de510c136bb1e9b3a891"
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 24-1456 (2024A) — Increase Syphilis Testing During Pregnancy

Effective January 1, 2025, the act repeals the existing statutory requirement to test a person who is pregnant for syphilis at the person's first professional visit with a health-care provider or during the first trimester of pregnancy.

## 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_hb1456_s_hhs_001.pdf)
2. **Engrossed (04/29/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1456_eng.pdf)
3. **Final Act (05/17/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1456_enr.pdf)
4. **Introduced (04/15/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1456_01.pdf)
5. **PA1 (04/24/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1456_h_hhs_01.pdf)
6. **Reengrossed (04/30/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1456_ren.pdf)
7. **Rerevised (05/07/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1456_rer.pdf)
8. **Revised (05/06/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1456_rev.pdf)
9. **Signed Act (06/05/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2024a_1456_signed.pdf)

## Votes

- BILL — **35–0** (pass) · upper
- BILL — **52–11** (pass) · lower

## Sponsors

- Dafna Michaelson Jenet — primary (person)
- Julia Marvin — primary (person)
- Lindsey Daugherty — primary (person)

## Timeline

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

- **2024-06-05T06:00:00+00:00** Governor Signed `executive-signature`
- **2024-05-17T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2024-05-17T06:00:00+00:00** Signed by the President of the Senate
- **2024-05-17T06:00:00+00:00** Signed by the Speaker of the House
- **2024-05-07T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2024-05-06T06:00:00+00:00** Senate Second Reading Special Order - Passed - No Amendments
- **2024-05-02T06:00:00+00:00** Senate Committee on Health & Human Services Refer Unamended - Consent Calendar to Senate Committee of the Whole `committee-passage`
- **2024-04-30T06:00:00+00:00** Introduced In Senate - Assigned to Health & Human Services `introduction`
- **2024-04-30T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2024-04-29T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2024-04-25T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2024-04-23T06:00:00+00:00** House Committee on Health & Human Services Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2024-04-15T06:00:00+00:00** Introduced In House - Assigned to Health & Human Services `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/1b0c77be-3433-475e-a93f-b9313e3cc017`. Confidence: reported (aggregated from official Colorado legislature records).