---
type: "Bill"
title: "A bill for an act relating to distance requirements for certain motor vehicles following other vehicles. (Formerly HSB 127.) Effective 7-1-19."
description: "A bill for an act relating to distance requirements for certain motor vehicles following other vehicles. (Formerly HSB 127.) Effective 7-1-19."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2019-2020"
identifier: "HF 387"
citation: "Iowa HF 387 (2019-2020)"
classification: ["bill"]
subjects: ["driving", "motor vehicles", "trucks", "vehicles"]
status: "enacted"
primary_sponsors: []
version_count: 2
action_count: 13
vote_count: 2
first_action: "2019-02-14"
last_action: "2019-05-03"
source: "openstates"
source_identifier: "ocd-bill/8f0b757d-0939-4830-a244-b817d62e8b98"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=HF 387&ga=88"
source_hash: "038663a7ed581c7619e074e1588562205fb2c145a63b5ed65a7240e3a6e74ac9"
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 387 (2019-2020) — A bill for an act relating to distance requirements for certain motor vehicles following other vehicles. (Formerly HSB 127.) 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/HF387.html)
2. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/88/attachments/HF387.html)

## Votes

- Shall the bill pass? — **49–0** (pass) · upper
- Shall the bill pass? — **94–1** (pass) · lower

## Timeline

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

- **2019-02-14** Introduced, placed on calendar. `introduction`
- **2019-03-12** Passed House, yeas 94, nays 1. `passage`
- **2019-03-12** Immediate message.
- **2019-03-13** Message from House.
- **2019-03-13** Read first time, referred to Transportation. `reading-1`
- **2019-03-14** Subcommittee: Brown, Cournoyer, and Lykam.
- **2019-04-02** Committee report, recommending passage. `committee-passage`
- **2019-04-11** Placed on calendar under unfinished business.
- **2019-04-18** Passed Senate, yeas 49, nays 0. `passage`
- **2019-04-18** Immediate message.
- **2019-04-18** Message from Senate.
- **2019-04-29** Reported correctly enrolled, signed by Speaker and President, and sent to Governor.
- **2019-05-03** 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/8f0b757d-0939-4830-a244-b817d62e8b98`. Confidence: reported (aggregated from official Iowa legislature records).