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

legislation/us/states/md/2021/hb-391.md

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+---
+type: "Bill"
+title: "Solid Waste Management – Prohibition on Releasing a Balloon Into the Atmosphere"
+description: "Solid Waste Management – Prohibition on Releasing a Balloon Into the Atmosphere"
+jurisdiction: "us/states/md"
+legislature: "Maryland General Assembly"
+session: "2021"
+identifier: "HB 391"
+citation: "Maryland HB 391 (2021)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Arentz", "Boyce", "Feldmark", "Hartman", "Kerr", "Lisanti", "Love"]
+version_count: 4
+action_count: 19
+vote_count: 3
+first_action: "2020-09-22"
+last_action: "2021-05-30"
+source: "openstates"
+source_identifier: "ocd-bill/6e272b6c-eb7a-4fe9-8274-3f04e7183dc9"
+source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0391?ys=2021RS&search=True"
+source_hash: "2ab81b0ba3dd8e123ebda50db821798864720dace6ca82503f569688cbb81c8a"
+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 391 (2021) — Solid Waste Management – Prohibition on Releasing a Balloon Into the Atmosphere
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **Chapter - Solid Waste Management – Prohibition on Releasing a Balloon Into the Atmosphere** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/Chapters_noln/CH_610_hb0391e.pdf)
+2. **Enrolled - Solid Waste Management – Prohibition on Releasing a Balloon Into the Atmosphere** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/hb/hb0391e.pdf)
+3. **First - Solid Waste Management – Prohibition on Releasing a Balloon Into the Atmosphere** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/hb/hb0391f.pdf)
+4. **Third - Solid Waste Management – Prohibition on Releasing a Balloon Into the Atmosphere** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/hb/hb0391t.pdf)
+
+## Votes
+
+- On Third Reading and Final Passage (Hse concurred) — **103–35** (pass) · lower
+- On Third Reading — **94–34** (pass) · lower
+- On Third Reading (Amend) — **41–6** (pass) · upper
+
+## Sponsors
+
+- Arentz — primary (person)
+- Boyce — primary (person)
+- Feldmark — primary (person)
+- Hartman — primary (person)
+- Kerr — primary (person)
+- Lisanti — primary (person)
+- Love — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2020-09-22** Pre-filed `introduction`
+- **2021-01-13** First Reading Environment and Transportation `referral-committee`
+- **2020-12-22** Hearing 1/15 at 1:30 p.m.
+- **2021-02-05** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
+- **2021-02-11** Favorable with Amendments { `committee-passage-favorable`
+- **2021-02-11** Second Reading Passed with Amendments
+- **2021-02-16** Third Reading Passed `passage`
+- **2021-02-17** Referred Education, Health, and Environmental Affairs `referral-committee`
+- **2021-03-31** Favorable with Amendments Report by Education, Health, and Environmental Affairs `committee-passage-favorable`
+- **2021-03-31** Favorable with Amendments { `committee-passage-favorable`
+- **2021-03-31** Motion Laid Over (Senator Jennings) Adopted
+- **2021-04-05** Favorable with Amendments { `committee-passage-favorable`
+- **2021-04-05** Floor Amendment {
+- **2021-04-05** Second Reading Passed with Amendments
+- **2021-04-06** Third Reading Passed `passage`
+- **2021-04-08** House Concurs Senate Amendments
+- **2021-04-08** Third Reading Passed `passage`
+- **2021-04-08** Passed Enrolled
+- **2021-05-30** Enacted under Article II, Section 17(c) of the Maryland Constitution - Chapter 610 `became-law`
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/6e272b6c-eb7a-4fe9-8274-3f04e7183dc9`. Confidence: reported (aggregated from official Maryland legislature records).
+