republic-os/legislation/us/states/co/2025a/hb-25-1283.md

type, title, description, jurisdiction, legislature, session, identifier, citation, classification, subjects, status, primary_sponsors, version_count, action_count, vote_count, first_action, last_action, source, source_identifier, source_url, source_hash, vintage, source_snapshot, retrieved_at, confidence, tags

type	title	description	jurisdiction	legislature	session	identifier	citation	classification	subjects	status	primary_sponsors	version_count	action_count	vote_count	first_action	last_action	source	source_identifier	source_url	source_hash	vintage	source_snapshot	retrieved_at	confidence	tags
Bill	Wild Horse Project Management & Immunocontraception	The act repeals the wild horse project and transfers the statutory duties concerning wild horse management and support to the department of agriculture (department). The act repeals and replaces the wild horse stewardship program and the wild horse fertility program with support efforts managed by the department and with an immunocontraception program managed by the department.	us/states/co	Colorado General Assembly	2025A	HB 25-1283	Colorado HB 25-1283 (2025A)	bill		enacted	Janice Marchman Larry Liston Monica Duran Ty Winter	10	18	5	2025-02-24T07:00:00+00:00	2025-05-22T06:00:00+00:00	openstates	ocd-bill/ecfe551c-a0fd-4ff7-8eeb-3f19883a9635	https://leg.colorado.gov/bills/hb25-1283	edc98b083befb90463f2099eb6fc880c5d97968ee4d38b589a1866f4a56e744f	2026-07-01	https://data.openstates.org/daily/2026-07-01/public.pgdump	2026-07-06	reported	legislation bill us-co

Colorado HB 25-1283 (2025A) — Wild Horse Project Management & Immunocontraception

The act repeals the wild horse project and transfers the statutory duties concerning wild horse management and support to the department of agriculture (department). The act repeals and replaces the wild horse stewardship program and the wild horse fertility program with support efforts managed by the department and with an immunocontraception program managed by the department.

Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. Committee Amendment (committee substitute) — source
2. Engrossed (03/17/2025) (committee substitute) — source
3. Final Act (05/12/2025) (committee substitute) — source
4. Introduced (02/24/2025) (committee substitute) — source
5. PA1 (03/14/2025) (committee substitute) — source
6. PA2 (04/11/2025) (committee substitute) — source
7. Reengrossed (03/19/2025) (committee substitute) — source
8. Rerevised (04/21/2025) (committee substitute) — source
9. Revised (04/17/2025) (committee substitute) — source
10. Signed Act (05/22/2025) (committee substitute) — source

Votes

• BILL — 56–8 (pass) · lower
• ADOPT REPORT — 33–0 (pass) · upper
• CONCUR — 64–0 (pass) · lower
• BILL — 29–6 (pass) · upper
• REPASS — 60–4 (pass) · lower

Sponsors

• Janice Marchman — primary (person)
• Larry Liston — primary (person)
• Monica Duran — primary (person)
• Ty Winter — primary (person)
• B. Marshall — cosponsor (person)
• C. Clifford — cosponsor (person)
• D. Michaelson Jenet — cosponsor (person)
• E. Hamrick — cosponsor (person)
• E. Sirota — cosponsor (person)
• I. Jodeh — cosponsor (person)
• J. Bacon — cosponsor (person)
• J. McCluskie — cosponsor (person)
• J. Phillips — cosponsor (person)
• J. Willford — cosponsor (person)
• K. Brown — cosponsor (person)
• K. McCormick — cosponsor (person)
• K. Stewart — cosponsor (person)
• L. Smith — cosponsor (person)
• M. Lindsay — cosponsor (person)
• M. Lukens — cosponsor (person)
• M. Soper — cosponsor (person)
• N. Ricks — cosponsor (person)
• S. Bird — cosponsor (person)
• S. Lieder — cosponsor (person)
• T. Mauro — cosponsor (person)

Timeline

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

• 2025-05-22T06:00:00+00:00 Governor Signed executive-signature
• 2025-05-12T06:00:00+00:00 Sent to the Governor executive-receipt
• 2025-05-12T06:00:00+00:00 Signed by the President of the Senate
• 2025-05-12T06:00:00+00:00 Signed by the Speaker of the House
• 2025-04-23T06:00:00+00:00 House Considered Senate Amendments - Result was to Concur - Repass
• 2025-04-22T06:00:00+00:00 House Considered Senate Amendments - Result was to Laid Over Daily
• 2025-04-21T06:00:00+00:00 Senate Third Reading Passed - No Amendments passage, reading-3
• 2025-04-17T06:00:00+00:00 Senate Second Reading Passed with Amendments - Committee reading-2
• 2025-04-16T06:00:00+00:00 Senate Second Reading Laid Over Daily - No Amendments
• 2025-04-15T06:00:00+00:00 Senate Second Reading Laid Over Daily - No Amendments
• 2025-04-14T06:00:00+00:00 Senate Second Reading Laid Over Daily - No Amendments
• 2025-04-10T06:00:00+00:00 Senate Committee on Agriculture & Natural Resources Refer Amended to Senate Committee of the Whole committee-passage, referral-committee
• 2025-03-24T06:00:00+00:00 Introduced In Senate - Assigned to Agriculture & Natural Resources introduction
• 2025-03-19T06:00:00+00:00 House Third Reading Passed - No Amendments passage, reading-3
• 2025-03-18T06:00:00+00:00 House Third Reading Laid Over Daily - No Amendments
• 2025-03-17T06:00:00+00:00 House Second Reading Special Order - Passed with Amendments - Committee
• 2025-03-13T06:00:00+00:00 House Committee on Agriculture, Water & Natural Resources Refer Amended to House Committee of the Whole committee-passage, referral-committee
• 2025-02-24T07:00:00+00:00 Introduced In House - Assigned to Agriculture, Water & Natural Resources introduction

Source

OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/ecfe551c-a0fd-4ff7-8eeb-3f19883a9635. Confidence: reported (aggregated from official Colorado legislature records).