---
type: "Bill"
title: "A bill for an act authorizing mental health professionals to perform certain functions relating to persons with substance-related disorders and persons with mental illness. (Formerly HF 319.) Effective 7-1-17."
description: "A bill for an act authorizing mental health professionals to perform certain functions relating to persons with substance-related disorders and persons with mental illness. (Formerly HF 319.) Effective 7-1-17."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2017-2018"
identifier: "HF 593"
citation: "Iowa HF 593 (2017-2018)"
classification: ["bill"]
subjects: ["addictions", "alcoholic beverages", "commitment proceedings", "controlled substances", "drugs", "health", "health-related professions", "medical care", "mental health", "mental health institutes", "prescription drugs", "substance abuse"]
status: "enacted"
primary_sponsors: []
version_count: 2
action_count: 12
vote_count: 2
first_action: "2017-03-13"
last_action: "2017-04-07"
source: "openstates"
source_identifier: "ocd-bill/9d4de8a4-1c61-471c-b2fd-b0eaa6b027ef"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=HF 593&ga=87"
source_hash: "2696725b4fd6a092aab601ca30333af5f02c2d647e2777cbb21f1b7844afa512"
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 593 (2017-2018) — A bill for an act authorizing mental health professionals to perform certain functions relating to persons with substance-related disorders and persons with mental illness. (Formerly HF 319.) Effective 7-1-17.

## 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/HF593.html)
2. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/87/attachments/HF593.html)

## Votes

- Shall the bill pass? — **99–0** (pass) · lower
- Shall the bill pass? — **49–0** (pass) · upper

## Timeline

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

- **2017-03-13** Introduced, placed on calendar. `introduction`
- **2017-03-22** Passed House, ayes 99, nays 0. `passage`
- **2017-03-22** Immediate message.
- **2017-03-23** Message from House.
- **2017-03-23** Read first time and attached to companion SF 464. `reading-1`
- **2017-03-29** Substituted for SF 464.
- **2017-03-29** Passed Senate, ayes 49, nays 0. `passage`
- **2017-03-29** Immediate message.
- **2017-03-29** Message from Senate.
- **2017-04-04** Reported correctly enrolled, signed by Speaker and President.
- **2017-04-04** Sent to Governor. `executive-receipt`
- **2017-04-07** 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/9d4de8a4-1c61-471c-b2fd-b0eaa6b027ef`. Confidence: reported (aggregated from official Iowa legislature records).