---
type: "Bill"
title: "Department of the Environment - Federal Environmental Policy - Reporting"
description: "Department of the Environment - Federal Environmental Policy - Reporting"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2026"
identifier: "HB 663"
citation: "Maryland HB 663 (2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Behler", "Boyce", "Foley", "Guyton", "Holmes", "J. Lewis", "Odom", "Rosenberg", "Stein"]
version_count: 3
action_count: 25
vote_count: 3
first_action: "2026-01-30"
last_action: "2026-04-28"
source: "openstates"
source_identifier: "ocd-bill/4c3be393-6781-4aa9-8b4f-07817552e013"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0663?ys=2026RS"
source_hash: "772e829984dc78446abe9be225a9bb96cc8d3531cbebcfebfdb1d250e0c3eea8"
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 663 (2026) — Department of the Environment - Federal Environmental Policy - Reporting

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Chapter - Department of the Environment - Federal Environmental Policy - Reporting** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/Chapters_noln/CH_322_hb0663t.pdf)
2. **First - Department of the Environment - Federal Policy on Greenhouse Gas Emissions - Reporting** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/bills/hb/hb0663f.pdf)
3. **Third - Department of the Environment - Federal Environmental Policy - Reporting** (committee substitute) — [source](http://mgaleg.maryland.gov/2026RS/bills/hb/hb0663t.pdf)

## Votes

- On Third Reading — **98–37** (pass) · lower
- Bill is on Third Reading for Final Passage. — **34–13** (pass) · upper
- On Third Reading (Amend) — **28–13** (pass) · upper

## Sponsors

- Behler — primary (person)
- Boyce — primary (person)
- Foley — primary (person)
- Guyton — primary (person)
- Holmes — primary (person)
- J. Lewis — primary (person)
- Odom — primary (person)
- Rosenberg — primary (person)
- Stein — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2026-01-30** First Reading Environment and Transportation `referral-committee`
- **2026-02-02** Hearing 2/18 at 1:00 p.m.
- **2026-03-09** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
- **2026-03-10** Favorable with Amendments { `committee-passage-favorable`
- **2026-03-10** Second Reading Passed with Amendments
- **2026-03-11** Third Reading Passed `passage`
- **2026-03-12** Referred Education, Energy, and the Environment `referral-committee`
- **2026-03-13** Hearing 3/24 at 1:00 p.m.
- **2026-04-06** Favorable Report by Education, Energy, and the Environment `committee-passage-favorable`
- **2026-04-07** Favorable `committee-passage-favorable`
- **2026-04-07** Motion Special Order until 4/8 (Senator Ready) Adopted
- **2026-04-08** Favorable Adopted `committee-passage-favorable`
- **2026-04-08** Floor Amendment {
- **2026-04-08** Second Reading Passed with Amendments
- **2026-04-09** Third Reading Passed `passage`
- **2026-04-09** House Refuses Concur Senate Amendments
- **2026-04-09** House Requests Senate Recede
- **2026-04-09** House Conference Committee Appointed (Delegates Stein, Fraser-Hidalgo and Anderson)
- **2026-04-13** House Refuses Concur Senate Amendments
- **2026-04-13** House Requests Senate Recede
- **2026-04-13** House Conference Committee Appointed (Delegates Stein, Fraser-Hidalgo and Anderson)
- **2026-04-13** Senate Recede
- **2026-04-13** Third Reading Passed `passage`
- **2026-04-13** Returned Passed
- **2026-04-28** Approved by the Governor - Chapter 322 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/4c3be393-6781-4aa9-8b4f-07817552e013`. Confidence: reported (aggregated from official Maryland legislature records).