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-489.md

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+---
+type: "Bill"
+title: "Maryland Department of Labor - Study on Building Code Requirements for Single-Staircase Buildings"
+description: "Maryland Department of Labor - Study on Building Code Requirements for Single-Staircase Buildings"
+jurisdiction: "us/states/md"
+legislature: "Maryland General Assembly"
+session: "2025"
+identifier: "HB 489"
+citation: "Maryland HB 489 (2025)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Allen", "Boyce", "Foley", "Holmes", "Lehman", "R. Lewis", "Stewart", "Ziegler"]
+version_count: 4
+action_count: 15
+vote_count: 3
+first_action: "2025-01-20"
+last_action: "2025-05-13"
+source: "openstates"
+source_identifier: "ocd-bill/94def9a9-5eb7-4b0a-b87d-92894b1a4884"
+source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0489?ys=2025RS&search=True"
+source_hash: "225459b41a61d787937da6b108d2cde8a79c9c3f56fc6e9336a0ef79d469f9fa"
+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 489 (2025) — Maryland Department of Labor - Study on Building Code Requirements for Single-Staircase Buildings
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **Chapter - Maryland Department of Labor - Study on Building Code Requirements for Single-Staircase Buildings** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/Chapters_noln/CH_504_hb0489e.pdf)
+2. **Enrolled - Maryland Department of Labor - Study on Building Code Requirements for Single-Staircase Buildings** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb0489e.pdf)
+3. **First - Maryland Department of Labor - Study on Building Code Requirements for Single-Staircase Buildings** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb0489f.pdf)
+4. **Third - Maryland Department of Labor - Study on Building Code Requirements for Single-Staircase Buildings** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb0489t.pdf)
+
+## Votes
+
+- On Third Reading (Amend) — **35–7** (pass) · upper
+- On Third Reading and Final Passage (Hse concurred) — **113–25** (pass) · lower
+- On Third Reading — **123–12** (pass) · lower
+
+## Sponsors
+
+- Allen — primary (person)
+- Boyce — primary (person)
+- Foley — primary (person)
+- Holmes — primary (person)
+- Lehman — primary (person)
+- R. Lewis — primary (person)
+- Stewart — primary (person)
+- Ziegler — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2025-01-20** First Reading Environment and Transportation `referral-committee`
+- **2025-01-22** Hearing 2/11 at 1:00 p.m.
+- **2025-03-03** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
+- **2025-03-04** Favorable with Amendments { `committee-passage-favorable`
+- **2025-03-04** Second Reading Passed with Amendments
+- **2025-03-06** Third Reading Passed `passage`
+- **2025-03-07** Referred Education, Energy, and the Environment `referral-committee`
+- **2025-04-05** Favorable with Amendments Report by Education, Energy, and the Environment `committee-passage-favorable`
+- **2025-04-05** Favorable with Amendments { `committee-passage-favorable`
+- **2025-04-05** Second Reading Passed with Amendments
+- **2025-04-05** 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 504 `executive-signature`
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/94def9a9-5eb7-4b0a-b87d-92894b1a4884`. Confidence: reported (aggregated from official Maryland legislature records).
+