republic-os/legislation/us/states/co/2018a/hb-18-1008.md

---
type: "Bill"
title: "Mussel-free Colorado Act"
description: "Water Resources Review Committee. Section 3 of the bill updates a legislative declaration concerning aquatic nuisance species to encourage the federal government to dedicate sufficient funding and resources to the detection, prevention, control, and eradication of aquatic nuisance species for federally owned or managed aquatic resources and water infrastructure in Colorado."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2018A"
identifier: "HB 18-1008"
citation: "Colorado HB 18-1008 (2018A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Daneya Esgar", "Don Coram", "Jeni James Arndt", "Kerry Donovan"]
version_count: 10
action_count: 17
vote_count: 4
first_action: "2018-01-10T07:00:00+00:00"
last_action: "2018-04-23T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/5827517d-ed68-4663-b04e-ee7c43c5e856"
source_url: "http://leg.colorado.gov/bills/hb18-1008"
source_hash: "0108fc72274d2d4d45f17496249a565f535846bbd325c28f2f86c58bc4abdcee"
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 18-1008 (2018A) — Mussel-free Colorado Act

Water Resources Review Committee. Section 3 of the bill updates a legislative declaration concerning aquatic nuisance species to encourage the federal government to dedicate sufficient funding and resources to the detection, prevention, control, and eradication of aquatic nuisance species for federally owned or managed aquatic resources and water infrastructure in Colorado.

## 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/documents/2018a/bills/cr/2018a_hb1008_s_app_001.pdf)
2. **Engrossed (02/26/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008_eng.pdf)
3. **Final Act (04/16/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008_enr.pdf)
4. **Introduced (01/10/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008_01.pdf)
5. **PA1 (01/24/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008agr_01.pdf)
6. **PA2 (03/09/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008sfin_001_01.pdf)
7. **Reengrossed (02/27/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008_ren.pdf)
8. **Rerevised (04/03/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008_rer.pdf)
9. **Revised (04/02/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008_rev.pdf)
10. **Signed Act (04/23/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1008_signed.pdf)

## Votes

- BILL — **44–20** (pass) · lower
- REPASS — **47–15** (pass) · lower
- CONCUR — **50–12** (pass) · lower
- BILL — **24–10** (pass) · lower

## Sponsors

- Daneya Esgar — primary (person)
- Don Coram — primary (person)
- Jeni James Arndt — primary (person)
- Kerry Donovan — primary (person)

## Timeline

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

- **2018-04-23T06:00:00+00:00** Governor Signed `executive-signature`
- **2018-04-16T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2018-04-16T06:00:00+00:00** Signed by the President of the Senate
- **2018-04-13T06:00:00+00:00** Signed by the Speaker of the House
- **2018-04-05T06:00:00+00:00** House Considered Senate Amendments - Result was to Concur - Repass
- **2018-04-03T06:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2018-04-02T06:00:00+00:00** Senate Second Reading Passed with Amendments - Committee `reading-2`
- **2018-03-29T06:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
- **2018-03-27T06:00:00+00:00** Senate Committee on Appropriations Refer Unamended to Senate Committee of the Whole `referral-committee, committee-passage`
- **2018-03-08T07:00:00+00:00** Senate Committee on Finance Refer Amended to Appropriations `referral-committee`
- **2018-03-05T07:00:00+00:00** Introduced In Senate - Assigned to Finance `introduction`
- **2018-02-27T07:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
- **2018-02-26T07:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee
- **2018-02-23T07:00:00+00:00** House Committee on Appropriations Refer Unamended to House Committee of the Whole `referral-committee, committee-passage`
- **2018-01-31T07:00:00+00:00** House Committee on Finance Refer Unamended to Appropriations `referral-committee`
- **2018-01-22T07:00:00+00:00** House Committee on Agriculture, Livestock, & Natural Resources Refer Amended to Finance `referral-committee`
- **2018-01-10T07:00:00+00:00** Introduced In House - Assigned to Agriculture, Livestock, & Natural Resources `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5827517d-ed68-4663-b04e-ee7c43c5e856`. Confidence: reported (aggregated from official Colorado legislature records).