---
type: "Bill"
title: "Workers’ Compensation – Medical Presumptions for Diseases and Cancer – Eligibility (Firefighter Jesse McCullough’s Cancer Protection Law)"
description: "Workers’ Compensation – Medical Presumptions for Diseases and Cancer – Eligibility (Firefighter Jesse McCullough’s Cancer Protection Law)"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2019"
identifier: "HB 604"
citation: "Maryland HB 604 (2019)"
classification: ["bill"]
subjects: ["Workers' Compensation", "Diseases", "Emergency Medical Services", "Fire Protection", "Health", "Occupational Safety", "Rescue Squads", "Workers' Compensation"]
status: "enacted"
primary_sponsors: ["D.E. Davis"]
version_count: 1
action_count: 16
vote_count: 3
first_action: "2019-02-06"
last_action: "2019-04-30"
source: "openstates"
source_identifier: "ocd-bill/b9348ade-036a-4f2c-bef8-841282590368"
source_url: "http://mgaleg.maryland.gov/webmga/frmMain.aspx?id=HB604&stab=01&pid=billpage&tab=subject3&ys=2019rs"
source_hash: "d1013e79cec1bc0dd41fdcc2427cb6300c5bdb50cd9b2f60e91b1080f80cf70b"
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 604 (2019) — Workers’ Compensation – Medical Presumptions for Diseases and Cancer – Eligibility (Firefighter Jesse McCullough’s Cancer Protection Law)

## 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/hb0604f.pdf)

## Votes

- On Third Reading — **131–3** (pass) · lower
- On Third Reading and Final Passage (Hse concurred) — **131–4** (pass) · lower
- No motion given — **46–0** (pass) · upper

## Sponsors

- D.E. Davis — primary (person)
- Charles — cosponsor (person)
- D. Barnes — cosponsor (person)
- Fennell — cosponsor (person)
- Gaines — cosponsor (person)
- Harrison — cosponsor (person)
- Ivey — cosponsor (person)
- Proctor — cosponsor (person)
- R. Watson — cosponsor (person)
- Turner — cosponsor (person)
- W. Fisher — cosponsor (person)
- Walker — cosponsor (person)

## Timeline

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

- **2019-02-06** First Reading Economic Matters `referral-committee`
- **2019-02-07** Hearing 2/26 at 1:00 p.m.
- **2019-03-14** Favorable with Amendments Report by Economic Matters `committee-passage-favorable`
- **2019-03-14** Favorable with Amendments {863698/1 Report Adopted `committee-passage-favorable`
- **2019-03-14** Second Reading Passed with Amendments
- **2019-03-16** Third Reading Passed (131-3) `passage`
- **2019-03-18** First Reading Finance `referral-committee`
- **2019-03-21** Favorable with Amendments Report by Finance `committee-passage-favorable`
- **2019-03-21** Favorable with Amendments {467773/1 Report Adopted `committee-passage-favorable`
- **2019-03-21** Second Reading Passed with Amendments
- **2019-03-22** Floor Amendment {643129/1 (Senator Klausmeier) Adopted `amendment-passage`
- **2019-03-22** Third Reading Passed with Amendments (46-0) `passage`
- **2019-03-27** House Concur - Senate Amendments
- **2019-03-27** Third Reading Passed (131-4) `passage`
- **2019-03-27** Passed Enrolled
- **2019-04-30** Approved by the Governor - Chapter 215 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/b9348ade-036a-4f2c-bef8-841282590368`. Confidence: reported (aggregated from official Maryland legislature records).