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/2024/hb-457.md

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+---
+type: "Bill"
+title: "Environment - Synthetic Turf - Disclosure and Study"
+description: "Environment - Synthetic Turf - Disclosure and Study"
+jurisdiction: "us/states/md"
+legislature: "Maryland General Assembly"
+session: "2024"
+identifier: "HB 457"
+citation: "Maryland HB 457 (2024)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Acevero", "Addison", "Allen", "Alston", "Amprey", "Attar", "Bagnall", "Barnes", "Boafo", "Boyce", "Charkoudian", "D. Jones", "Davis", "Ebersole", "Edelson", "Fair", "Foley", "Forbes", "Fraser-Hidalgo", "Guyton", "Guzzone", "Harris", "Healey", "Hill", "Holmes", "Ivey", "J. Long", "Kaufman", "Lehman", "Lopez", "Love", "Martinez", "McCaskill", "Palakovich Carr", "Pasteur", "Patterson", "Pena-Melnyk", "Phillips", "Pruski", "Qi", "R. Lewis", "Ruth", "S. Johnson", "Shetty", "Simmons", "Simpson", "Smith", "Solomon", "Stein", "Stewart", "Taveras", "Taylor", "Terrasa", "Vogel", "Williams", "Woods", "Ziegler"]
+version_count: 4
+action_count: 20
+vote_count: 3
+first_action: "2024-01-22"
+last_action: "2024-05-09"
+source: "openstates"
+source_identifier: "ocd-bill/5a52b2df-4454-47f0-bf5e-eedc485820ba"
+source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0457?ys=2024RS&search=True"
+source_hash: "85e20ee669f2afea5a6c887d04c2485ff291eaea62d36bac41498af78d3ffd9a"
+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 457 (2024) — Environment - Synthetic Turf - Disclosure and Study
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **Chapter - Environment - Synthetic Turf - Disclosure and Study** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/Chapters_noln/CH_567_hb0457e.pdf)
+2. **Enrolled - Environment - Synthetic Turf - Disclosure and Study** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0457e.pdf)
+3. **First - Environment - Synthetic Turf - Chain of Custody** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0457f.pdf)
+4. **Third - Environment - Synthetic Turf - Chain of Custody** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0457t.pdf)
+
+## Votes
+
+- On Third Reading — **101–38** (pass) · lower
+- On Third Reading (Amend) — **44–0** (pass) · upper
+- On Third Reading and Final Passage (Hse concurred) — **103–31** (pass) · lower
+
+## Sponsors
+
+- Acevero — primary (person)
+- Addison — primary (person)
+- Allen — primary (person)
+- Alston — primary (person)
+- Amprey — primary (person)
+- Attar — primary (person)
+- Bagnall — primary (person)
+- Barnes — primary (person)
+- Boafo — primary (person)
+- Boyce — primary (person)
+- Charkoudian — primary (person)
+- D. Jones — primary (person)
+- Davis — primary (person)
+- Ebersole — primary (person)
+- Edelson — primary (person)
+- Fair — primary (person)
+- Foley — primary (person)
+- Forbes — primary (person)
+- Fraser-Hidalgo — primary (person)
+- Guyton — primary (person)
+- Guzzone — primary (person)
+- Harris — primary (person)
+- Healey — primary (person)
+- Hill — primary (person)
+- Holmes — primary (person)
+- Ivey — primary (person)
+- J. Long — primary (person)
+- Kaufman — primary (person)
+- Lehman — primary (person)
+- Lopez — primary (person)
+- Love — primary (person)
+- Martinez — primary (person)
+- McCaskill — primary (person)
+- Palakovich Carr — primary (person)
+- Pasteur — primary (person)
+- Patterson — primary (person)
+- Pena-Melnyk — primary (person)
+- Phillips — primary (person)
+- Pruski — primary (person)
+- Qi — primary (person)
+- R. Lewis — primary (person)
+- Ruth — primary (person)
+- S. Johnson — primary (person)
+- Shetty — primary (person)
+- Simmons — primary (person)
+- Simpson — primary (person)
+- Smith — primary (person)
+- Solomon — primary (person)
+- Stein — primary (person)
+- Stewart — primary (person)
+- Taveras — primary (person)
+- Taylor — primary (person)
+- Terrasa — primary (person)
+- Vogel — primary (person)
+- Williams — primary (person)
+- Woods — primary (person)
+- Ziegler — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2024-01-22** First Reading Environment and Transportation `referral-committee`
+- **2024-01-25** Hearing 2/16 at 1:00 p.m.
+- **2024-02-15** Hearing canceled
+- **2024-02-15** Hearing 2/16 at 12:30 p.m.
+- **2024-02-26** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
+- **2024-02-27** Favorable with Amendments { `committee-passage-favorable`
+- **2024-02-27** Second Reading Passed with Amendments
+- **2024-02-29** Third Reading Passed `passage`
+- **2024-03-01** Referred Education, Energy, and the Environment `referral-committee`
+- **2024-03-18** Hearing 3/20 at 1:00 p.m.
+- **2024-04-05** Favorable with Amendments Report by Education, Energy, and the Environment `committee-passage-favorable`
+- **2024-04-05** Favorable with Amendments { `committee-passage-favorable`
+- **2024-04-05** Motion Laid Over (Senator Ready) Adopted
+- **2024-04-08** Favorable with Amendments { `committee-passage-favorable`
+- **2024-04-08** Second Reading Passed with Amendments
+- **2024-04-08** Third Reading Passed `passage`
+- **2024-04-08** House Concurs Senate Amendments
+- **2024-04-08** Third Reading Passed `passage`
+- **2024-04-08** Passed Enrolled
+- **2024-05-09** Approved by the Governor - Chapter 567 `executive-signature`
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5a52b2df-4454-47f0-bf5e-eedc485820ba`. Confidence: reported (aggregated from official Maryland legislature records).
+