---
type: "Bill"
title: "Vehicle Laws - Ignition Interlock System Program - Required Participation"
description: "Vehicle Laws - Ignition Interlock System Program - Required Participation"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2026"
identifier: "HB 286"
citation: "Maryland HB 286 (2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: []
version_count: 3
action_count: 15
vote_count: 1
first_action: "2025-09-26"
last_action: "2026-04-14"
source: "openstates"
source_identifier: "ocd-bill/683a47c2-b127-4a85-82c4-960557659045"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0286?ys=2026RS"
source_hash: "4d3621a0c892907da343a5dcbc34df12fb4616f45a3a9ec69de81cf358ca52ff"
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-md"]
---

# Maryland HB 286 (2026) — Vehicle Laws - Ignition Interlock System Program - Required Participation

## Version chain

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

1. **Chapter - Vehicle Laws - Ignition Interlock System Program - Required Participation** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/Chapters_noln/CH_80_hb0286t.pdf)
2. **First - Vehicle Laws - Ignition Interlock System Program - Required Participation** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/bills/hb/hb0286f.pdf)
3. **Third - Vehicle Laws - Ignition Interlock System Program - Required Participation** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/bills/hb/hb0286t.pdf)

## Votes

- On Third Reading — **133–1** (pass) · lower

## Sponsors

- Chair, Judiciary Committee — primary (organization)

## Timeline

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

- **2025-09-26** Pre-filed `introduction`
- **2026-01-14** First Reading Judiciary `referral-committee`
- **2026-01-16** Hearing 2/04 at 2:00 p.m.
- **2026-01-16** Hearing canceled
- **2026-01-16** Hearing 2/04 at 1:00 p.m.
- **2026-02-16** Favorable Report by Judiciary `committee-passage-favorable`
- **2026-02-17** Favorable Adopted `committee-passage-favorable`
- **2026-02-17** Second Reading Passed
- **2026-02-19** Third Reading Passed `passage`
- **2026-02-20** Referred Judicial Proceedings `referral-committee`
- **2026-04-08** Favorable Report by Judicial Proceedings `committee-passage-favorable`
- **2026-04-08** Favorable Adopted Second Reading Passed `committee-passage-favorable`
- **2026-04-09** Third Reading Passed `passage`
- **2026-04-09** Returned Passed
- **2026-04-14** Approved by the Governor - Chapter 80 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/683a47c2-b127-4a85-82c4-960557659045`. Confidence: reported (aggregated from official Maryland legislature records).