---
type: "Bill"
title: "Prevent Marijuana Diversion To Illegal Market"
description: "The bill places a cap on the number of plants that can be possessed or grown on a residential property at 16 plants unless a local jurisdiction permits possessing or growing more than 16 plants. The criminal penalties for violating the cultivation limit are:"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2017A"
identifier: "HB 17-1220"
citation: "Colorado HB 17-1220 (2017A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Bob Gardner", "Cole Wist", "KC Becker", "Rhonda Fields"]
version_count: 17
action_count: 16
vote_count: 9
first_action: "2017-03-02T07:00:00+00:00"
last_action: "2017-06-08T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/9ce0034d-52de-49f6-9fea-106d9998a2af"
source_url: "http://leg.colorado.gov/bills/hb17-1220"
source_hash: "1315dd5542f5ac122ad8e291ddf783357d3c0bac648b01921e60323a7c6c806e"
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 17-1220 (2017A) — Prevent Marijuana Diversion To Illegal Market

The bill places a cap on the number of plants that can be possessed or grown on a residential property at 16 plants unless a local jurisdiction permits possessing or growing more than 16 plants. The criminal penalties for violating the cultivation limit are:

## Version chain

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

1. **Amendment L.001** (committee substitute) — [source](http://coga.prod.acquia-sites.com/sites/default/files/html-attachments/h_fin_2017a_20170306t134245z0__hearing_summary/17HouseFin0306AttachR.pdf)
2. **Amendment L.002** (committee substitute) — [source](http://coga.prod.acquia-sites.com/sites/default/files/html-attachments/h_fin_2017a_20170306t134245z0__hearing_summary/17HouseFin0306AttachS.pdf)
3. **Amendment L.003** (committee substitute) — [source](http://coga.prod.acquia-sites.com/sites/default/files/html-attachments/h_fin_2017a_20170306t134245z0__hearing_summary/17HouseFin0306AttachT.pdf)
4. **Amendment L.025** (committee substitute) — [source](http://coga.prod.acquia-sites.com/sites/default/files/html-attachments/s_jud_2017a_20170322t133705z2__hearing_summary/17SenateJud0322AttachL.pdf)
5. **Amendment L.026** (committee substitute) — [source](http://coga.prod.acquia-sites.com/sites/default/files/html-attachments/s_jud_2017a_20170322t133705z2__hearing_summary/17SenateJud0322AttachM.pdf)
6. **Amendment L.027** (committee substitute) — [source](http://coga.prod.acquia-sites.com/sites/default/files/html-attachments/s_jud_2017a_20170322t133705z2__hearing_summary/17SenateJud0322AttachN.pdf)
7. **Amendment L.028** (committee substitute) — [source](http://coga.prod.acquia-sites.com/sites/default/files/html-attachments/s_jud_2017a_20170322t133705z2__hearing_summary/17SenateJud0322AttachO.pdf)
8. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017a/bills/cr/2017A_HB1220_S_JUD_001.pdf)
9. **Engrossed (03/10/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220_eng.pdf)
10. **Final Act (05/01/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220_enr.pdf)
11. **Introduced (03/02/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220_01.pdf)
12. **PA1 (03/07/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220fin_01.pdf)
13. **PA2 (03/23/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220sjud_01.pdf)
14. **Reengrossed (03/13/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220_ren.pdf)
15. **Rerevised (03/29/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220_rer.pdf)
16. **Revised (03/28/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220_rev.pdf)
17. **Signed Act (06/08/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_1220_signed.pdf)

## Votes

- Adopt amendment L.001 (Attachment R). The motion passed without objection. — **0–0** (pass) · legislature
- Adopt amendment L.026 (Attachment M). The motion passed without objection. — **0–0** (pass) · legislature
- Adopt amendment L.028 (Attachment O). The motion passed without objection. — **0–0** (pass) · legislature
- Adopt amendment L.002 (Attachment S). The motion passed without objection. — **0–0** (pass) · legislature
- Refer House Bill 17-1220, as amended, to the Committee of the Whole. The motion passed on a vote of 5-0. — **5–0** (pass) · legislature
- Adopt amendment L.003 (Attachment T). The motion passed without objection. — **0–0** (pass) · legislature
- Adopt amendment L.027 (Attachment N). The motion passed without objection. — **0–0** (pass) · legislature
- Refer House Bill 17-1220, as amended, to the Committee of the Whole. The motion passed on a vote of 11-2. — **11–2** (pass) · legislature
- Adopt Amendment L.025 (Attachment L). The motion passed without objection. — **0–0** (pass) · legislature

## Sponsors

- Bob Gardner — primary (person)
- Cole Wist — primary (person)
- KC Becker — primary (person)
- Rhonda Fields — primary (person)

## Timeline

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

- **2017-06-08T06:00:00+00:00** Governor Signed `executive-signature`
- **2017-05-02T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2017-05-01T06:00:00+00:00** Signed by the President of the Senate
- **2017-05-01T06:00:00+00:00** Signed by the Speaker of the House
- **2017-03-31T06:00:00+00:00** House Considered Senate Amendments - Result was to Concur - Repass
- **2017-03-30T06:00:00+00:00** House Considered Senate Amendments - Result was to Laid Over Daily
- **2017-03-29T06:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2017-03-28T06:00:00+00:00** Senate Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2017-03-27T06:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
- **2017-03-22T06:00:00+00:00** Senate Committee on Judiciary Refer Amended to Senate Committee of the Whole `referral-committee, committee-passage`
- **2017-03-21T06:00:00+00:00** Introduced In Senate - Assigned to Judiciary `introduction`
- **2017-03-13T06:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
- **2017-03-10T07:00:00+00:00** House Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2017-03-09T07:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2017-03-06T07:00:00+00:00** House Committee on Finance Refer Amended to House Committee of the Whole `referral-committee, committee-passage`
- **2017-03-02T07:00:00+00:00** Introduced In House - Assigned to Finance `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/9ce0034d-52de-49f6-9fea-106d9998a2af`. Confidence: reported (aggregated from official Colorado legislature records).