republic-os/legislation/us/states/md/2024/hb-397.md

type, title, description, jurisdiction, legislature, session, identifier, citation, classification, subjects, status, primary_sponsors, version_count, action_count, vote_count, first_action, last_action, source, source_identifier, source_url, source_hash, vintage, source_snapshot, retrieved_at, confidence, tags

type	title	description	jurisdiction	legislature	session	identifier	citation	classification	subjects	status	primary_sponsors	version_count	action_count	vote_count	first_action	last_action	source	source_identifier	source_url	source_hash	vintage	source_snapshot	retrieved_at	confidence	tags
Bill	Public Utilities – Thermal Energy Network Systems – Authorization and Establishment (Working for Accessible Renewable Maryland Thermal Heat (WARMTH) Act)	Public Utilities – Thermal Energy Network Systems – Authorization and Establishment (Working for Accessible Renewable Maryland Thermal Heat (WARMTH) Act)	us/states/md	Maryland General Assembly	2024	HB 397	Maryland HB 397 (2024)	bill		enacted	Charkoudian	4	17	3	2024-01-17	2024-05-09	openstates	ocd-bill/f99b21b6-3f58-4ed9-82ab-d68321c1be86	http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0397?ys=2024RS&search=True	b7e56f85ca1bafcdb1110987ab43c3fd85ac3f30702489a8ef4fc8a61d9ce5df	2026-07-01	https://data.openstates.org/daily/2026-07-01/public.pgdump	2026-07-06	reported	legislation bill us-md

Maryland HB 397 (2024) — Public Utilities – Thermal Energy Network Systems – Authorization and Establishment (Working for Accessible Renewable Maryland Thermal Heat (WARMTH) Act)

Version chain

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

1. Chapter - Public Utilities – Thermal Energy Network Systems – Authorization and Establishment (Working for Accessible Renewable Maryland Thermal Heat (WARMTH) Act) (committee substitute) — source
2. Enrolled - Public Utilities – Thermal Energy Network Systems – Authorization and Establishment (Working for Accessible Renewable Maryland Thermal Heat (WARMTH) Act) (committee substitute) — source
3. First - Public Utilities – Thermal Energy Network Systems – Authorization and Establishment (Working for Accessible Renewable Maryland Thermal Heat (WARMTH) Act) (committee substitute) — source
4. Third - Public Utilities – Thermal Energy Network Systems – Authorization and Establishment (Working for Accessible Renewable Maryland Thermal Heat (WARMTH) Act) (committee substitute) — source

Votes

• On Third Reading — 99–38 (pass) · lower
• On Third Reading (Amend) — 36–9 (pass) · upper
• On Third Reading and Final Passage (Hse concurred) — 98–34 (pass) · lower

Sponsors

• Charkoudian — primary (person)

Timeline

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

• 2024-01-17 First Reading Economic Matters referral-committee
• 2024-02-01 Hearing 2/22 at 1:00 p.m.
• 2024-03-07 Favorable with Amendments Report by Economic Matters committee-passage-favorable
• 2024-03-08 Favorable with Amendments { committee-passage-favorable
• 2024-03-08 Second Reading Passed with Amendments
• 2024-03-12 Third Reading Passed passage
• 2024-03-13 Referred Education, Energy, and the Environment referral-committee
• 2024-03-29 Favorable with Amendments Report by Education, Energy, and the Environment committee-passage-favorable
• 2024-03-29 Favorable with Amendments { committee-passage-favorable
• 2024-03-29 Motion Laid Over (Senator Hershey) Adopted
• 2024-04-01 Favorable with Amendments { committee-passage-favorable
• 2024-04-01 Second Reading Passed with Amendments
• 2024-04-02 Third Reading Passed passage
• 2024-04-05 House Concurs Senate Amendments
• 2024-04-05 Third Reading Passed passage
• 2024-04-05 Passed Enrolled
• 2024-05-09 Approved by the Governor - Chapter 564 executive-signature

Source

OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/f99b21b6-3f58-4ed9-82ab-d68321c1be86. Confidence: reported (aggregated from official Maryland legislature records).