---
type: "Bill"
title: "Environment - Building Energy Performance Standards - Alterations and Analysis"
description: "Environment - Building Energy Performance Standards - Alterations and Analysis"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2025"
identifier: "HB 49"
citation: "Maryland HB 49 (2025)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: []
version_count: 4
action_count: 21
vote_count: 5
first_action: "2024-10-09"
last_action: "2025-05-25"
source: "openstates"
source_identifier: "ocd-bill/e682fe0e-28d4-4993-a4df-f379151196f1"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0049?ys=2025RS&search=True"
source_hash: "23dc242b40e53d4e2be9a40523bb49525cb2f0b663d3e0ff59eb0dba303e7c20"
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 49 (2025) — Environment - Building Energy Performance Standards - Alterations and Analysis

## Version chain

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

1. **Chapter - Environment - Building Energy Performance Standards - Alterations and Analysis** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/Chapters_noln/CH_844_hb0049e.pdf)
2. **Enrolled - Environment - Building Energy Performance Standards - Alterations and Analysis** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb0049e.pdf)
3. **First - Environment - Building Energy Performance Standards - Compliance and Reporting** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb0049f.pdf)
4. **Third - Environment - Building Energy Performance Standards - Alterations** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb0049t.pdf)

## Votes

- On Third Reading and Final Passage (Hse concurred) — **101–38** (pass) · lower
- FLA Del. Hartman /833528/1 — **35–101** (fail) · lower
- On Third Reading (Amend) — **38–4** (pass) · upper
- FLA Del. Chisholm /293820/1 — **39–98** (fail) · lower
- On Third Reading — **101–35** (pass) · lower

## Sponsors

- Chair, Environment and Transportation Committee — primary (organization)

## Timeline

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

- **2024-10-09** Pre-filed `introduction`
- **2025-01-08** First Reading Environment and Transportation `referral-committee`
- **2025-01-27** Hearing 2/12 at 1:00 p.m.
- **2025-03-12** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
- **2025-03-13** Favorable with Amendments { `committee-passage-favorable`
- **2025-03-13** Motion Special Order until 03/14 (Delegate Korman) Adopted
- **2025-03-14** Floor Amendment {
- **2025-03-14** Floor Amendment {
- **2025-03-14** Floor Amendment {
- **2025-03-14** Second Reading Passed with Amendments
- **2025-03-17** Third Reading Passed `passage`
- **2025-03-17** 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** Floor Amendment {
- **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
- **2025-05-25** Enacted under Article II, Section 17(c) of the Maryland Constitution - Chapter 844 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/e682fe0e-28d4-4993-a4df-f379151196f1`. Confidence: reported (aggregated from official Maryland legislature records).