---
type: "Bill"
title: "Electricity and Gas - Energy Suppliers - Supply Offers"
description: "Electricity and Gas - Energy Suppliers - Supply Offers"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2021"
identifier: "HB 397"
citation: "Maryland HB 397 (2021)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Lierman"]
version_count: 3
action_count: 14
vote_count: 2
first_action: "2020-09-23"
last_action: "2021-05-30"
source: "openstates"
source_identifier: "ocd-bill/7018f461-8f8b-4e72-9092-49b48bf834d0"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0397?ys=2021RS&search=True"
source_hash: "e11cee9a5060398a09f2851ece6d00d4f2e62d74dfbc70eb4e4c083df615db9e"
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 397 (2021) — Electricity and Gas - Energy Suppliers - Supply Offers

## Version chain

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

1. **Chapter - Electricity and Gas - Energy Suppliers - Supply Offers** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/Chapters_noln/CH_636_hb0397t.pdf)
2. **First - Electricity and Gas - Energy Suppliers - Supply Offers** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/hb/hb0397f.pdf)
3. **Third - Electricity and Gas - Energy Suppliers - Supply Offers** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/hb/hb0397t.pdf)

## Votes

- On Third Reading — **36–11** (pass) · upper
- On Third Reading — **92–38** (pass) · lower

## Sponsors

- Lierman — primary (person)

## Timeline

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

- **2020-09-23** Pre-filed `introduction`
- **2021-01-13** First Reading Economic Matters `referral-committee`
- **2021-01-18** Hearing 2/04 at 1:30 p.m.
- **2021-02-24** Favorable with Amendments Report by Economic Matters `committee-passage-favorable`
- **2021-02-25** Favorable with Amendments { `committee-passage-favorable`
- **2021-02-25** Second Reading Passed with Amendments
- **2021-02-26** Third Reading Passed `passage`
- **2021-03-02** Referred Finance `referral-committee`
- **2021-04-07** Favorable Report by Finance `committee-passage-favorable`
- **2021-04-07** Favorable Adopted `committee-passage-favorable`
- **2021-04-07** Second Reading Passed
- **2021-04-08** Third Reading Passed `passage`
- **2021-04-09** Returned Passed
- **2021-05-30** Enacted under Article II, Section 17(c) of the Maryland Constitution - Chapter 636 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/7018f461-8f8b-4e72-9092-49b48bf834d0`. Confidence: reported (aggregated from official Maryland legislature records).