---
type: "Bill"
title: "Motor Vehicles - Work Zone Speed Control Systems - Revisions (Maryland Road Worker Protection Act of 2024)"
description: "Motor Vehicles - Work Zone Speed Control Systems - Revisions (Maryland Road Worker Protection Act of 2024)"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2024"
identifier: "HB 513"
citation: "Maryland HB 513 (2024)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["A. Johnson", "Administration", "Allen", "Amprey", "Bagnall", "Bartlett", "Bhandari", "Boafo", "Boyce", "Charkoudian", "Crutchfield", "D. Jones", "Ebersole", "Fennell", "Foley", "Forbes", "Fraser-Hidalgo", "Grossman", "Guyton", "Guzzone", "Harris", "Healey", "Henson", "Hill", "Holmes", "J. Long", "Jackson", "Kaiser", "Kaufman", "Lehman", "Lopez", "Martinez", "McCaskill", "Munoz", "Palakovich Carr", "Pasteur", "Patterson", "Phillips", "Pruski", "Roberson", "Ruff", "Ruth", "S. Johnson", "Simmons", "Simpson", "Solomon", "Speaker", "Stein", "Stewart", "T. Morgan", "Taveras", "Taylor", "Terrasa", "Turner", "Valderrama", "Watson", "White Holland", "Williams", "Ziegler"]
version_count: 4
action_count: 30
vote_count: 7
first_action: "2024-01-24"
last_action: "2024-04-09"
source: "openstates"
source_identifier: "ocd-bill/ea97acd6-8380-4a9e-946a-f3098815c10b"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0513?ys=2024RS&search=True"
source_hash: "c7029c5e68e93b5cdc5a907e311fc58e8945e2a50d98af167ee6947193186f2c"
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 513 (2024) — Motor Vehicles - Work Zone Speed Control Systems - Revisions (Maryland Road Worker Protection Act of 2024)

## Version chain

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

1. **Chapter - Motor Vehicles - Work Zone Speed Control Systems - Revisions (Maryland Road Worker Protection Act of 2024)** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/Chapters_noln/CH_17_hb0513e.pdf)
2. **Enrolled - Motor Vehicles - Work Zone Speed Control Systems - Revisions (Maryland Road Worker Protection Act of 2024)** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0513e.pdf)
3. **First - Motor Vehicles - Work Zone Speed Control Systems - Revisions (Maryland Road Worker Protection Act of 2024)** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0513f.pdf)
4. **Third - Motor Vehicles - Work Zone Speed Control Systems - Revisions (Maryland Road Worker Protection Act of 2024)** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0513t.pdf)

## Votes

- On Third Reading — **99–38** (pass) · lower
- On Third Reading and Final Passage (CCR Adp) — **96–36** (pass) · lower
- On Third Reading (Amend) — **37–10** (pass) · upper
- Conference Committee Report - Adoption — **37–10** (pass) · upper
- FLA Del. Hornberger /473221/1 — **37–95** (fail) · lower
- FLA Del. Hornberger /223822/1 — **39–95** (fail) · lower
- Bill is on Third Reading for Final Passage. — **37–10** (pass) · upper

## Sponsors

- A. Johnson — primary (person)
- Administration — primary (person)
- Allen — primary (person)
- Amprey — primary (person)
- Bagnall — primary (person)
- Bartlett — primary (person)
- Bhandari — primary (person)
- Boafo — primary (person)
- Boyce — primary (person)
- Charkoudian — primary (person)
- Crutchfield — primary (person)
- D. Jones — primary (person)
- Ebersole — primary (person)
- Fennell — primary (person)
- Foley — primary (person)
- Forbes — primary (person)
- Fraser-Hidalgo — primary (person)
- Grossman — primary (person)
- Guyton — primary (person)
- Guzzone — primary (person)
- Harris — primary (person)
- Healey — primary (person)
- Henson — primary (person)
- Hill — primary (person)
- Holmes — primary (person)
- J. Long — primary (person)
- Jackson — primary (person)
- Kaiser — primary (person)
- Kaufman — primary (person)
- Lehman — primary (person)
- Lopez — primary (person)
- Martinez — primary (person)
- McCaskill — primary (person)
- Munoz — primary (person)
- Palakovich Carr — primary (person)
- Pasteur — primary (person)
- Patterson — primary (person)
- Phillips — primary (person)
- Pruski — primary (person)
- Roberson — primary (person)
- Ruff — primary (person)
- Ruth — primary (person)
- S. Johnson — primary (person)
- Simmons — primary (person)
- Simpson — primary (person)
- Solomon — primary (person)
- Speaker — primary (person)
- Stein — primary (person)
- Stewart — primary (person)
- T. Morgan — primary (person)
- Taveras — primary (person)
- Taylor — primary (person)
- Terrasa — primary (person)
- Turner — primary (person)
- Valderrama — primary (person)
- Watson — primary (person)
- White Holland — primary (person)
- Williams — primary (person)
- Ziegler — primary (person)

## Timeline

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

- **2024-01-24** First Reading Environment and Transportation `referral-committee`
- **2024-01-25** Hearing 2/15 at 1:00 p.m.
- **2024-03-06** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
- **2024-03-07** Favorable with Amendments { `committee-passage-favorable`
- **2024-03-07** Motion Special Order until 3/8 (Delegate Hornberger) Adopted
- **2024-03-08** Floor Amendment {
- **2024-03-08** Floor Amendment {
- **2024-03-08** Second Reading Passed with Amendments
- **2024-03-12** Third Reading Passed `passage`
- **2024-03-13** Referred Judicial Proceedings `referral-committee`
- **2024-04-02** Favorable with Amendments Report by Judicial Proceedings `committee-passage-favorable`
- **2024-04-03** Favorable with Amendments { `committee-passage-favorable`
- **2024-04-03** Second Reading Passed with Amendments
- **2024-04-04** Third Reading Passed `passage`
- **2024-04-05** House Refuses Concur Senate Amendments
- **2024-04-05** House Requests Senate Recede
- **2024-04-05** House Conference Committee Appointed (Delegates Korman, Boyce and T. Morgan)
- **2024-04-08** House Refuses Concur Senate Amendments
- **2024-04-08** House Requests Senate Recede
- **2024-04-08** House Conference Committee Appointed (Delegates Korman, Boyce and T. Morgan)
- **2024-04-08** Senate Refuses Recede
- **2024-04-08** Senate Conference Committee Appointed (Senators Smith, Folden and Sydnor)
- **2024-04-08** Senate Refuses Recede
- **2024-04-08** Senate Conference Committee Appointed (Senators Smith, Folden and Sydnor)
- **2024-04-08** Conference Committee Report {
- **2024-04-08** Third Reading Passed `passage`
- **2024-04-08** Conference Committee Report {
- **2024-04-08** Third Reading Passed `passage`
- **2024-04-08** Passed Enrolled
- **2024-04-09** Approved by the Governor - Chapter 17 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/ea97acd6-8380-4a9e-946a-f3098815c10b`. Confidence: reported (aggregated from official Maryland legislature records).