republic-os/legislation/us/states/md/2025/hb-1322.md

type, title, description, jurisdiction, legislature, session, identifier, citation, classification, subjects, status, primary_sponsors, version_count, action_count, vote_count, first_action, last_action, source, source_identifier, source_url, source_hash, vintage, source_snapshot, retrieved_at, confidence, tags

type	title	description	jurisdiction	legislature	session	identifier	citation	classification	subjects	status	primary_sponsors	version_count	action_count	vote_count	first_action	last_action	source	source_identifier	source_url	source_hash	vintage	source_snapshot	retrieved_at	confidence	tags
Bill	Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)	Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)	us/states/md	Maryland General Assembly	2025	HB 1322	Maryland HB 1322 (2025)	bill		enacted	Allen Behler Boyce Cullison Davis Feldmark Foley Guyton Guzzone Healey Hill Lehman Pena-Melnyk R. Lewis Ruth Stein Stewart Terrasa Woorman Ziegler	4	15	3	2025-02-07	2025-05-13	openstates	ocd-bill/aa615924-cc56-4c09-894b-260c87bc7a2b	http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb1322?ys=2025RS&search=True	6db18860f4fb28c0a16f650429e0f22f8245a96c3fd7df30e2e77caf974a9086	2026-07-01	https://data.openstates.org/daily/2026-07-01/public.pgdump	2026-07-06	reported	legislation bill us-md

Maryland HB 1322 (2025) — Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)

Version chain

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

1. Chapter - Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law) (committee substitute) — source
2. Enrolled - Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law) (committee substitute) — source
3. First - Natural Resources - Vessels - Carbon Monoxide Warning Labels (committee substitute) — source
4. Third - Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law) (committee substitute) — source

Votes

• On Third Reading (Amend) — 44–0 (pass) · upper
• On Third Reading and Final Passage (Hse concurred) — 138–1 (pass) · lower
• On Third Reading — 135–4 (pass) · lower

Sponsors

• Allen — primary (person)
• Behler — primary (person)
• Boyce — primary (person)
• Cullison — primary (person)
• Davis — primary (person)
• Feldmark — primary (person)
• Foley — primary (person)
• Guyton — primary (person)
• Guzzone — primary (person)
• Healey — primary (person)
• Hill — primary (person)
• Lehman — primary (person)
• Pena-Melnyk — primary (person)
• R. Lewis — primary (person)
• Ruth — primary (person)
• Stein — primary (person)
• Stewart — primary (person)
• Terrasa — primary (person)
• Woorman — primary (person)
• Ziegler — primary (person)

Timeline

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

• 2025-02-07 First Reading Environment and Transportation referral-committee
• 2025-02-07 Hearing 3/05 at 1:00 p.m.
• 2025-03-12 Favorable with Amendments Report by Environment and Transportation committee-passage-favorable
• 2025-03-13 Favorable with Amendments { committee-passage-favorable
• 2025-03-13 Second Reading Passed with Amendments
• 2025-03-13 Third Reading Passed passage
• 2025-03-17 Referred Education, Energy, and the Environment referral-committee
• 2025-04-03 Favorable with Amendments Report by Education, Energy, and the Environment committee-passage-favorable
• 2025-04-03 Favorable with Amendments { committee-passage-favorable
• 2025-04-03 Second Reading Passed with Amendments
• 2025-04-04 Third Reading Passed passage
• 2025-04-07 House Concurs Senate Amendments
• 2025-04-07 Third Reading Passed passage
• 2025-04-07 Passed Enrolled
• 2025-05-13 Approved by the Governor - Chapter 451 executive-signature

Source

OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/aa615924-cc56-4c09-894b-260c87bc7a2b. Confidence: reported (aggregated from official Maryland legislature records).