---
type: "Bill"
title: "Expansion of Commercial Gaming - Sports and Event Wagering Referendum and Minority Business Enterprise Disparity Study"
description: "Expansion of Commercial Gaming - Sports and Event Wagering Referendum and Minority Business Enterprise Disparity Study"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2020"
identifier: "SB 4"
citation: "Maryland SB 4 (2020)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Beidle", "Guzzone", "King", "McCray", "Miller", "West", "Zucker"]
version_count: 4
action_count: 21
vote_count: 4
first_action: "2020-01-08"
last_action: "2020-05-08"
source: "openstates"
source_identifier: "ocd-bill/296fd29d-485f-4a63-8f54-a891abc4e31e"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/sb0004?ys=2020RS&search=True"
source_hash: "451d78f3f7c92f6c3a878fb07bae1e1cda8186d45e78ee169b685bb75d0c1b7c"
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 SB 4 (2020) — Expansion of Commercial Gaming - Sports and Event Wagering Referendum and Minority Business Enterprise Disparity Study

## Version chain

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

1. **Chapter - Expansion of Commercial Gaming - Sports and Event Wagering Referendum and Minority Business Enterprise Disparity Study** (committee substitute) — [source](http://mgaleg.maryland.gov/2020RS/Chapters_noln/CH_492_sb0004e.pdf)
2. **Enrolled - Expansion of Commercial Gaming - Sports and Event Wagering Referendum and Minority Business Enterprise Disparity Study** (committee substitute) — [source](http://mgaleg.maryland.gov/2020RS/bills/sb/sb0004e.pdf)
3. **First - Gaming - Sports Betting - Implementation** (committee substitute) — [source](http://mgaleg.maryland.gov/2020RS/bills/sb/sb0004f.pdf)
4. **Third - Gaming - Sports Betting - Implementation** (committee substitute) — [source](http://mgaleg.maryland.gov/2020RS/bills/sb/sb0004t.pdf)

## Votes

- Motion to suspend rules and allow 2 Rdgs on 1 Day — **125–2** (pass) · lower
- On third reading — **45–0** (pass) · upper
- ON THIRD READING (Rules Suspended) (Amend) — **129–3** (pass) · lower
- On Third Reading — **47–0** (pass) · upper

## Sponsors

- Beidle — primary (person)
- Guzzone — primary (person)
- King — primary (person)
- McCray — primary (person)
- Miller — primary (person)
- West — primary (person)
- Zucker — primary (person)

## Timeline

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

- **2020-01-08** First Reading Budget and Taxation `referral-committee`
- **2020-01-20** Hearing 1/29 at 1:00 p.m.
- **2020-03-05** Favorable with Amendments Report by Budget and Taxation `committee-passage-favorable`
- **2020-03-05** Favorable with Amendments { `committee-passage-favorable`
- **2020-03-05** Motion Laid Over (Senator Jennings) Adopted
- **2020-03-06** Favorable with Amendments { `committee-passage-favorable`
- **2020-03-06** Floor Amendment {
- **2020-03-06** Second Reading Passed with Amendments
- **2020-03-10** Third Reading Passed `passage`
- **2020-03-10** Referred Ways and Means `referral-committee`
- **2020-03-10** Hearing 3/19 at 1:00 p.m.
- **2020-03-16** Hearing canceled
- **2020-03-17** Favorable with Amendments Report by Ways and Means `committee-passage-favorable`
- **2020-03-17** Favorable with Amendments { `committee-passage-favorable`
- **2020-03-17** Second Reading Passed with Amendments
- **2020-03-17** Motion Rules Suspend Two Readings Same Day (Delegate Patterson) Adopted
- **2020-03-17** Third Reading Passed `passage`
- **2020-03-18** Senate Concurs House Amendments
- **2020-03-18** Third Reading Passed `passage`
- **2020-03-18** Passed Enrolled
- **2020-05-08** Enacted under Article II, Section 17(c) of the Maryland Constitution - Chapter 492 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/296fd29d-485f-4a63-8f54-a891abc4e31e`. Confidence: reported (aggregated from official Maryland legislature records).