---
type: "Bill"
title: "Vehicle Laws - Electric Bicycles - Equipment and Operation"
description: "Vehicle Laws - Electric Bicycles - Equipment and Operation"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2019"
identifier: "HB 939"
citation: "Maryland HB 939 (2019)"
classification: ["bill"]
subjects: ["Vehicle Laws - Equipment and Inspections", "Vehicle Laws - Rules of the Road", "Administrative Agencies", "Bicycles", "Committees and Commissions", "Federal Government", "Fuel", "Highways", "Jurisdiction", "Labeling", "Minors", "Motor Vehicles", "Motor Vehicle Equipment", "Motor Vehicle Operation", "Safety", "Traffic Regulation", "Transportation"]
status: "enacted"
primary_sponsors: ["Cassilly"]
version_count: 1
action_count: 13
vote_count: 2
first_action: "2019-02-08"
last_action: "2019-04-18"
source: "openstates"
source_identifier: "ocd-bill/a3287ae6-a8c9-452d-962f-c6cefa1ab5e0"
source_url: "http://mgaleg.maryland.gov/webmga/frmMain.aspx?id=HB939&stab=01&pid=billpage&tab=subject3&ys=2019rs"
source_hash: "82fe7f8e5816e6b9f8cb6367e6116117c8da6ecf4d4787c2bb1304987cf17510"
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 939 (2019) — Vehicle Laws - Electric Bicycles - Equipment and Operation

## Version chain

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

1. **Bill Text** (committee substitute) — [source](http://mgaleg.maryland.gov/2019RS/bills/hb/hb0939f.pdf)

## Votes

- No motion given — **45–0** (pass) · upper
- On Third Reading — **135–0** (pass) · lower

## Sponsors

- Cassilly — primary (person)
- Boyce — cosponsor (person)
- Cardin — cosponsor (person)
- Clark — cosponsor (person)
- Fraser-Hidalgo — cosponsor (person)
- Holmes — cosponsor (person)
- Jacobs — cosponsor (person)
- Jalisi — cosponsor (person)
- Lehman — cosponsor (person)
- Otto — cosponsor (person)

## Timeline

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

- **2019-02-08** First Reading Environment and Transportation `referral-committee`
- **2019-02-11** Hearing 2/28 at 1:00 p.m.
- **2019-03-14** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
- **2019-03-14** Favorable with Amendments {410418/1 Report Adopted `committee-passage-favorable`
- **2019-03-14** Second Reading Passed with Amendments
- **2019-03-16** Third Reading Passed (135-0) `passage`
- **2019-03-18** First Reading Judicial Proceedings `referral-committee`
- **2019-04-01** Favorable Report by Judicial Proceedings `committee-passage-favorable`
- **2019-04-01** Favorable Report Adopted `committee-passage-favorable`
- **2019-04-01** Second Reading Passed
- **2019-04-02** Third Reading Passed (45-0) `passage`
- **2019-04-03** Returned Passed
- **2019-04-18** Approved by the Governor - Chapter 63 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/a3287ae6-a8c9-452d-962f-c6cefa1ab5e0`. Confidence: reported (aggregated from official Maryland legislature records).