Legislation: batch B — IL IN KS KY LA MA MD ME MI MN

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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

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+---
+type: "Bill"
+title: "Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)"
+description: "Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)"
+jurisdiction: "us/states/md"
+legislature: "Maryland General Assembly"
+session: "2025"
+identifier: "HB 1322"
+citation: "Maryland HB 1322 (2025)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Allen", "Behler", "Boyce", "Cullison", "Davis", "Feldmark", "Foley", "Guyton", "Guzzone", "Healey", "Hill", "Lehman", "Pena-Melnyk", "R. Lewis", "Ruth", "Stein", "Stewart", "Terrasa", "Woorman", "Ziegler"]
+version_count: 4
+action_count: 15
+vote_count: 3
+first_action: "2025-02-07"
+last_action: "2025-05-13"
+source: "openstates"
+source_identifier: "ocd-bill/aa615924-cc56-4c09-894b-260c87bc7a2b"
+source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb1322?ys=2025RS&search=True"
+source_hash: "6db18860f4fb28c0a16f650429e0f22f8245a96c3fd7df30e2e77caf974a9086"
+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 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](http://mgaleg.maryland.gov/2025RS/Chapters_noln/CH_451_hb1322e.pdf)
+2. **Enrolled - Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb1322e.pdf)
+3. **First - Natural Resources - Vessels - Carbon Monoxide Warning Labels** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb1322f.pdf)
+4. **Third - Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb1322t.pdf)
+
+## 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](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/aa615924-cc56-4c09-894b-260c87bc7a2b`. Confidence: reported (aggregated from official Maryland legislature records).
+