---
type: "Bill"
title: "A bill for an act relating to medical cannabidiol and prescription drugs, including the establishment of the medical cannabidiol Act, the federal scheduling of a cannabidiol investigational product, and the exchange of prescription drug information, providing for civil and criminal penalties and fees, and including effective date provisions. (Formerly HSB 89.) Effective 5-12-17."
description: "A bill for an act relating to medical cannabidiol and prescription drugs, including the establishment of the medical cannabidiol Act, the federal scheduling of a cannabidiol investigational product, and the exchange of prescription drug information, providing for civil and criminal penalties and fees, and including effective date provisions. (Formerly HSB 89.) Effective 5-12-17."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2017-2018"
identifier: "HF 524"
citation: "Iowa HF 524 (2017-2018)"
classification: ["bill"]
subjects: ["controlled substances", "drugs", "pharmacy", "prescription drugs"]
status: "enacted"
primary_sponsors: []
version_count: 8
action_count: 31
vote_count: 5
first_action: "2017-03-06"
last_action: "2017-05-12"
source: "openstates"
source_identifier: "ocd-bill/f5a5c866-9789-4899-9b38-1bef03a0fa31"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=HF 524&ga=87"
source_hash: "2d2947cbb5c81da26a3170e04b4d1cb924f58bb1a27b6187fec307d8e11339cd"
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-ia"]
---

# Iowa HF 524 (2017-2018) — A bill for an act relating to medical cannabidiol and prescription drugs, including the establishment of the medical cannabidiol Act, the federal scheduling of a cannabidiol investigational product, and the exchange of prescription drug information, providing for civil and criminal penalties and fees, and including effective date provisions. (Formerly HSB 89.) Effective 5-12-17.

## Version chain

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

1. **Introduced** (filed) — [source](https://www.legis.iowa.gov/docs/publications/LGI/87/attachments/HF524.html)
2. **Amendment H-1220** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/87/H1220.pdf)
3. **Amendment H-1341** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/87/H1341.pdf)
4. **Amendment H-1461** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/87/H1461.pdf)
5. **Amendment S-3267** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/87/S3267.pdf)
6. **Amendment S-3388** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/87/S3388.pdf)
7. **Reprinted** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGR/87/attachments/HF524.html)
8. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/87/attachments/HF524.html)

## Votes

- Shall the bill pass? — **83–11** (pass) · lower
- Shall the bill pass? — **49–0** (pass) · upper
- Shall the motion to concur be adopted? — **26–14** (pass) · upper
- Shall the bill pass? — **96–0** (pass) · lower
- Shall the bill pass? — **33–7** (pass) · upper

## Timeline

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

- **2017-03-06** Introduced, placed on calendar. `introduction`
- **2017-03-20** Amendment H-1220 filed. `amendment-introduction`
- **2017-03-21** Amendment H-1220 adopted. `amendment-passage`
- **2017-03-21** Passed House, ayes 96, nays 0. `passage`
- **2017-03-21** Explanation of vote.
- **2017-03-21** Immediate message.
- **2017-03-21** Message from House.
- **2017-03-21** Read first time, referred to Judiciary. `reading-1`
- **2017-03-21** Subcommittee: Edler, Garrett, and Taylor.
- **2017-03-30** Committee report, recommending amendment and passage. `committee-passage`
- **2017-03-30** Amendment S-3267 filed. `amendment-introduction`
- **2017-04-07** Placed on calendar under unfinished business.
- **2017-04-13** Amendment S-3267 adopted. `amendment-passage`
- **2017-04-13** Passed Senate, ayes 49, nays 0. `passage`
- **2017-04-13** Immediate message.
- **2017-04-13** Message from Senate.
- **2017-04-13** Senate amendment H-1341 filed.
- **2017-04-21** Amendment H-1461 to Senate amendment H-1341 filed, adopted.
- **2017-04-21** House concurred Senate amendment H-1341 as amended.
- **2017-04-21** Passed House, ayes 83, nays 11. `passage`
- **2017-04-21** Explanation of vote.
- **2017-04-22** Explanation of vote.
- **2017-04-21** Immediate message.
- **2017-04-21** Message from House, with amendment S-3388.
- **2017-04-21** Senate concurred with S-3388.
- **2017-04-21** Passed Senate, ayes 33, nays 7. `passage`
- **2017-04-21** Immediate message.
- **2017-04-21** Message from Senate.
- **2017-05-03** Reported correctly enrolled, signed by Speaker and President.
- **2017-05-03** Sent to Governor. `executive-receipt`
- **2017-05-12** Signed by Governor. `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/f5a5c866-9789-4899-9b38-1bef03a0fa31`. Confidence: reported (aggregated from official Iowa legislature records).