---
type: "Bill"
title: "A bill for an act relating to the Iowa sobriety and drug monitoring program. (Formerly SSB 1055.) Effective 7-1-19."
description: "A bill for an act relating to the Iowa sobriety and drug monitoring program. (Formerly SSB 1055.) Effective 7-1-19."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2019-2020"
identifier: "SF 364"
citation: "Iowa SF 364 (2019-2020)"
classification: ["bill"]
subjects: ["criminal offenders", "operating while intoxicated", "public safety department", "sobriety and drug monitoring program"]
status: "enacted"
primary_sponsors: []
version_count: 5
action_count: 14
vote_count: 2
first_action: "2019-02-21"
last_action: "2019-05-02"
source: "openstates"
source_identifier: "ocd-bill/3aa6952a-faba-41e8-bc50-633fbc2d1dce"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=SF 364&ga=88"
source_hash: "1f34b9fa9ed28b00f4a0a39b15dd20903352b69840109cd499e7e133a8fa862d"
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 SF 364 (2019-2020) — A bill for an act relating to the Iowa sobriety and drug monitoring program. (Formerly SSB 1055.) Effective 7-1-19.

## 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/88/attachments/SF364.html)
2. **Amendment S-3069** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/88/S3069.pdf)
3. **Reprinted** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGR/88/attachments/SF364.html)
4. **Reprinted Marked Up** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGRM/88/attachments/SF364.html)
5. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/88/attachments/SF364.html)

## Votes

- Shall the bill pass? — **50–0** (pass) · upper
- Shall the bill pass? — **96–0** (pass) · lower

## Timeline

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

- **2019-02-21** Introduced, placed on calendar. `introduction`
- **2019-02-21** Committee report, approving bill.
- **2019-03-25** Amendment S-3069 filed, adopted. `amendment-introduction, amendment-passage`
- **2019-03-25** Passed Senate, yeas 50, nays 0. `passage`
- **2019-03-25** Immediate message.
- **2019-03-26** Message from Senate.
- **2019-03-26** Read first time, passed on file. `reading-1`
- **2019-04-18** Substituted for HF 713.
- **2019-04-18** Passed House, yeas 96 nays none. `passage`
- **2019-04-24** Explanation of vote.
- **2019-04-18** Immediate message.
- **2019-04-19** Message from House.
- **2019-04-30** Reported correctly enrolled, signed by President and Speaker, and sent to Governor.
- **2019-05-02** 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/3aa6952a-faba-41e8-bc50-633fbc2d1dce`. Confidence: reported (aggregated from official Iowa legislature records).