---
type: "Bill"
title: "Criminal Procedure - Medical Emergency - Immunity"
description: "Criminal Procedure - Medical Emergency - Immunity"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2023"
identifier: "HB 427"
citation: "Maryland HB 427 (2023)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Boafo", "Cardin", "Foley", "Lopez", "McComas", "Terrasa"]
version_count: 3
action_count: 13
vote_count: 0
first_action: "2023-01-30"
last_action: "2023-05-16"
source: "openstates"
source_identifier: "ocd-bill/cc7642a0-3905-45b6-800a-b0354a42465a"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0427?ys=2023RS&search=True"
source_hash: "6b784b3d266cce6e1b3b41715c5e0a602c158aff86644b6d1d1dc23476b5fa58"
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 427 (2023) — Criminal Procedure - Medical Emergency - Immunity

## Version chain

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

1. **Chapter - Criminal Procedure - Medical Emergency - Immunity** (committee substitute) — [source](http://mgaleg.maryland.gov/2023RS/Chapters_noln/CH_717_hb0427t.pdf)
2. **First - Criminal Procedure - Medical Emergency - Immunity** (committee substitute) — [source](http://mgaleg.maryland.gov/2023RS/bills/hb/hb0427f.pdf)
3. **Third - Criminal Procedure - Medical Emergency - Immunity** (committee substitute) — [source](http://mgaleg.maryland.gov/2023RS/bills/hb/hb0427t.pdf)

## Sponsors

- Boafo — primary (person)
- Cardin — primary (person)
- Foley — primary (person)
- Lopez — primary (person)
- McComas — primary (person)
- Terrasa — primary (person)

## Timeline

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

- **2023-01-30** First Reading Judiciary `referral-committee`
- **2023-02-01** Hearing 2/21 at 1:00 p.m.
- **2023-03-15** Favorable Report by Judiciary `committee-passage-favorable`
- **2023-03-15** Favorable Adopted `committee-passage-favorable`
- **2023-03-15** Second Reading Passed
- **2023-03-16** Third Reading Passed `passage`
- **2023-03-16** Referred Judicial Proceedings `referral-committee`
- **2023-04-05** Favorable Report by Judicial Proceedings `committee-passage-favorable`
- **2023-04-05** Favorable Adopted `committee-passage-favorable`
- **2023-04-05** Second Reading Passed
- **2023-04-06** Third Reading Passed `passage`
- **2023-04-06** Returned Passed
- **2023-05-16** Approved by the Governor - Chapter 717 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/cc7642a0-3905-45b6-800a-b0354a42465a`. Confidence: reported (aggregated from official Maryland legislature records).