---
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).