---
type: "Bill"
title: "Montgomery County - Stop Sign Monitoring Systems Pilot Program - Gaithersburg and Rockville MC 5-26"
description: "Montgomery County - Stop Sign Monitoring Systems Pilot Program - Gaithersburg and Rockville MC 5-26"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2026"
identifier: "HB 601"
citation: "Maryland HB 601 (2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Montgomery County Delegation"]
version_count: 3
action_count: 14
vote_count: 2
first_action: "2026-01-28"
last_action: "2026-05-12"
source: "openstates"
source_identifier: "ocd-bill/c56a28b4-7e6e-4df5-bdd8-5be81f7aae7e"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0601?ys=2026RS"
source_hash: "5e0eecbdd6cddf02594a115f34bac124af9008498d903415ec39f7cd1c576c1c"
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 601 (2026) — Montgomery County - Stop Sign Monitoring Systems Pilot Program - Gaithersburg and Rockville MC 5-26

## Version chain

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

1. **Chapter - Montgomery County - Stop Sign Monitoring Systems Pilot Program - Gaithersburg and Rockville MC 5-26** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/Chapters_noln/CH_557_hb0601t.pdf)
2. **First - Montgomery County - Stop Sign Monitoring Systems Pilot Program - Gaithersburg and Rockville MC 5-26** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/bills/hb/hb0601f.pdf)
3. **Third - Montgomery County - Stop Sign Monitoring Systems Pilot Program - Gaithersburg and Rockville MC 5-26** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/bills/hb/hb0601t.pdf)

## Votes

- On Third Reading — **32–11** (pass) · upper
- On Third Reading — **95–28** (pass) · lower

## Sponsors

- Montgomery County Delegation — primary (person)

## Timeline

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

- **2026-01-28** First Reading Environment and Transportation `referral-committee`
- **2026-02-04** Hearing 2/19 at 1:00 p.m.
- **2026-03-02** Favorable Report by Environment and Transportation `committee-passage-favorable`
- **2026-03-03** Favorable Adopted `committee-passage-favorable`
- **2026-03-03** Second Reading Passed
- **2026-03-04** Third Reading Passed `passage`
- **2026-03-05** Referred Judicial Proceedings `referral-committee`
- **2026-03-20** Hearing 3/25 at 1:00 p.m.
- **2026-04-13** Favorable Report by Judicial Proceedings `committee-passage-favorable`
- **2026-04-13** Favorable Adopted `committee-passage-favorable`
- **2026-04-13** Second Reading Passed
- **2026-04-13** Third Reading Passed `passage`
- **2026-04-13** Returned Passed
- **2026-05-12** Approved by the Governor - Chapter 557 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/c56a28b4-7e6e-4df5-bdd8-5be81f7aae7e`. Confidence: reported (aggregated from official Maryland legislature records).