---
type: "Bill"
title: "A bill for an act relating to the confidentiality of certain physical infrastructure, cyber security, and critical infrastructure information and records developed, maintained, or held by a government body. (Formerly HSB 185.) Effective 7-1-17."
description: "A bill for an act relating to the confidentiality of certain physical infrastructure, cyber security, and critical infrastructure information and records developed, maintained, or held by a government body. (Formerly HSB 185.) Effective 7-1-17."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2017-2018"
identifier: "HF 601"
citation: "Iowa HF 601 (2017-2018)"
classification: ["bill"]
subjects: ["confidentiality", "infrastructure", "internet", "public records"]
status: "enacted"
primary_sponsors: []
version_count: 4
action_count: 21
vote_count: 3
first_action: "2017-03-21"
last_action: "2017-05-11"
source: "openstates"
source_identifier: "ocd-bill/2111775d-4683-435f-89b4-3830d63081a1"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=HF 601&ga=87"
source_hash: "364d6c3206cda50bbee9e0004fbecb20f480e1d7e27a707a701aeab8f053b2a6"
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 601 (2017-2018) — A bill for an act relating to the confidentiality of certain physical infrastructure, cyber security, and critical infrastructure information and records developed, maintained, or held by a government body. (Formerly HSB 185.) 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/HF601.html)
2. **Amendment H-1309** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/87/H1309.pdf)
3. **Amendment S-3268** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/AMDI/87/S3268.pdf)
4. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/87/attachments/HF601.html)

## Votes

- Shall the bill pass? — **98–0** (pass) · lower
- Shall the bill pass? — **93–0** (pass) · lower
- Shall the bill pass? — **50–0** (pass) · upper

## Timeline

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

- **2017-03-21** Introduced, placed on calendar. `introduction`
- **2017-03-27** Passed House, ayes 98, nays 0. `passage`
- **2017-03-28** Explanation of vote.
- **2017-03-27** Immediate message.
- **2017-03-27** Message from House.
- **2017-03-27** Read first time, referred to State Government. `reading-1`
- **2017-03-28** Subcommittee: Chapman, Dawson, and Petersen.
- **2017-03-31** Committee report, recommending amendment and passage. `committee-passage`
- **2017-03-31** Amendment S-3268 filed. `amendment-introduction`
- **2017-04-05** Amendment S-3268 adopted. `amendment-passage`
- **2017-04-05** Passed Senate, ayes 50, nays 0. `passage`
- **2017-04-05** Immediate message.
- **2017-04-05** Message from Senate.
- **2017-04-05** Senate amendment H-1309 filed.
- **2017-04-13** House concurred in Senate amendment H-1309.
- **2017-04-13** Passed House, ayes 93, nays 0. `passage`
- **2017-04-13** Immediate message.
- **2017-04-14** Message from House.
- **2017-04-25** Reported correctly enrolled, signed by Speaker and President.
- **2017-04-25** Sent to Governor. `executive-receipt`
- **2017-05-11** 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/2111775d-4683-435f-89b4-3830d63081a1`. Confidence: reported (aggregated from official Iowa legislature records).