---
type: "Bill"
title: "MINIMUM SPEED REGULATION – Amends existing law to prohibit operating a vehicle in the extreme left-hand lane for a period of time that impedes the flow of other traffic."
description: "MINIMUM SPEED REGULATION – Amends existing law to prohibit operating a vehicle in the extreme left-hand lane for a period of time that impedes the flow of other traffic."
jurisdiction: "us/states/id"
legislature: "Idaho Legislature"
session: "2018"
identifier: "H 471"
citation: "Idaho H 471 (2018)"
classification: ["bill"]
subjects: ["CRIMINAL OFFENSES & PROCEDURES", "DRIVERS", "HIGHWAYS", "MOTOR VEHICLES", "SPEED LIMITS", "TRANSPORTATION"]
status: "enacted"
primary_sponsors: []
version_count: 1
action_count: 19
vote_count: 2
first_action: "2018-01-31"
last_action: "2018-03-19"
source: "openstates"
source_identifier: "ocd-bill/bb0e4c95-b233-4b5b-93ff-661cb333e4c4"
source_url: "http://legislature.idaho.gov/sessioninfo/2018/legislation/H0471/"
source_hash: "c0211f874a564a06df53d131e760e6bf1db5834d069e6b32be39fc339ef1d786"
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-id"]
---

# Idaho H 471 (2018) — MINIMUM SPEED REGULATION – Amends existing law to prohibit operating a vehicle in the extreme left-hand lane for a period of time that impedes the flow of other traffic.

## Version chain

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

1. **Bill Text** (committee substitute) — [source](http://legislature.idaho.gov/wp-content/uploads/sessioninfo/2018/legislation/H0471.pdf)

## Votes

- Read Third Time in Full – — **41–28** (pass) · upper
- Read third time in full – — **22–13** (pass) · lower

## Sponsors

- TRANSPORTATION AND DEFENSE COMMITTEE — primary (organization)

## Timeline

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

- **2018-01-31** Introduced, read first time, referred to JRA for Printing `introduction`
- **2018-02-01** Reported Printed and Referred to Transportation & Defense
- **2018-02-13** Reported out of Committee with Do Pass Recommendation, Filed for Second Reading `committee-passage-favorable`
- **2018-02-14** Read second time; Filed for Third Reading
- **2018-02-15** U.C. to hold place on third reading calendar one legislative day
- **2018-02-16** Read Third Time in Full – PASSED - 41-28-0AYES – Amador, Anderson, Anderst, Barbieri, Blanksma, Boyle, Burtenshaw, Chaney, Cheatham, Clow, Collins, Crane, Dayley, DeMordaunt, Dixon, Ehardt, Gestrin, Harris, Holtzclaw, Kauffman, Kerby, King, Loertscher, Malek, McDonald, Mendive, Miller, Monks, Moyle, Palmer, Raybould, Redman, Shepherd, Stevenson, Thompson, Troy, Vander Woude, Wagoner, Wood, Youngblood, Mr. SpeakerNAYS – Armstrong, Bell, Chew, Erpelding, Gannon, Gibbs, Giddings, Hanks, Hartgen, Horman, Kingsley, Kloc(Tway), Luker, Manwaring, McCrostie, Moon, Nate, Packer, Perry, Rubel, Scott, Smith, Syme, Toone, VanOrden, Wintrow, Zito, ZollingerAbsent – NoneHouse seat 5A is vacantFloor Sponsor - ClowTitle apvd - to Senate `reading-3, passage`
- **2018-02-19** Received from the House passed; filed for first reading
- **2018-02-19** Introduced, read first time; referred to: Transportation `introduction`
- **2018-02-28** Reported out of Committee with Do Pass Recommendation; Filed for second reading `committee-passage-favorable`
- **2018-03-01** Read second time; filed for Third Reading
- **2018-03-06** Retained on calendar
- **2018-03-07** Read third time in full – PASSED - 22-13-0AYES – Agenbroad, Anthon, Bair, Bayer, Brackett, Buckner-Webb, Burgoyne, Den Hartog, Foreman, Heider, Hill, Jordan, Lakey, Lee, Lodge, Martin, Nonini, Patrick, Rice, Stennett, Vick, WinderNAYS – Crabtree, Guthrie, Hagedorn, Harris, Johnson, Keough, Mortimer, Nye, Potts, Siddoway, Souza, Thayn, Ward-EngelkingAbsent and excused – NoneFloor Sponsor - WinderTitle apvd - to House `reading-3, passage`
- **2018-03-08** Returned from Senate Passed; to JRA for Enrolling
- **2018-03-09** Reported Enrolled; Signed by Speaker; Transmitted to Senate
- **2018-03-12** Received from the House enrolled/signed by Speaker
- **2018-03-12** Signed by President; returned to House
- **2018-03-13** Returned Signed by the President; Ordered Transmitted to Governor
- **2018-03-14** Delivered to Governor at 11:20 a.m. on March 13, 2018
- **2018-03-19** Reported Signed by Governor on March 19, 2018 Session Law Chapter 130 Effective: 07/01/2018 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/bb0e4c95-b233-4b5b-93ff-661cb333e4c4`. Confidence: reported (aggregated from official Idaho legislature records).