---
type: "Bill"
title: "Regional Greenhouse Gas Initiative - Withdrawal - Legislative Approval Required (Regional Greenhouse Gas Initiative Extension Act)"
description: "Regional Greenhouse Gas Initiative - Withdrawal - Legislative Approval Required (Regional Greenhouse Gas Initiative Extension Act)"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2018"
identifier: "HB 230"
citation: "Maryland HB 230 (2018)"
classification: ["bill"]
subjects: ["Environment", "Environmental Matters", "General Assembly", "Pollution"]
status: "enacted"
primary_sponsors: ["Korman"]
version_count: 1
action_count: 13
vote_count: 2
first_action: "2018-01-18"
last_action: "2018-05-15"
source: "openstates"
source_identifier: "ocd-bill/965a5e05-2f62-4e0b-bb88-f608a8d103d9"
source_url: "http://mgaleg.maryland.gov/webmga/frmMain.aspx?id=HB230&stab=01&pid=billpage&tab=subject3&ys=2018rs"
source_hash: "67ba4b1dfee7d1861e9609dd72ec12ba8c948f034f26c01952b8d34d5d74d4f3"
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 230 (2018) — Regional Greenhouse Gas Initiative - Withdrawal - Legislative Approval Required (Regional Greenhouse Gas Initiative Extension Act)

## Version chain

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

1. **Bill Text** (committee substitute) — [source](http://mgaleg.maryland.gov/2018RS/bills/hb/hb0230f.pdf)

## Votes

- On Third Reading — **41–5** (pass) · upper
- On Third Reading — **87–48** (pass) · lower

## Sponsors

- Korman — primary (person)
- A. Miller — cosponsor (person)
- Barkley — cosponsor (person)
- Barve — cosponsor (person)
- Brooks — cosponsor (person)
- Chang — cosponsor (person)
- Clippinger — cosponsor (person)
- Dumais — cosponsor (person)
- Fennell — cosponsor (person)
- Flanagan — cosponsor (person)
- Fraser-Hidalgo — cosponsor (person)
- Frick — cosponsor (person)
- Gilchrist — cosponsor (person)
- Glenn — cosponsor (person)
- Gutierrez — cosponsor (person)
- Healey — cosponsor (person)
- Hettleman — cosponsor (person)
- Hill — cosponsor (person)
- J. Lewis — cosponsor (person)
- Jones — cosponsor (person)
- K. Young — cosponsor (person)
- Kaiser — cosponsor (person)
- Kramer — cosponsor (person)
- Krimm — cosponsor (person)
- Lierman — cosponsor (person)
- Luedtke — cosponsor (person)
- McIntosh — cosponsor (person)
- Moon — cosponsor (person)
- Morhaim — cosponsor (person)
- Pena-Melnyk — cosponsor (person)
- Pendergrass — cosponsor (person)
- Platt — cosponsor (person)
- R. Lewis — cosponsor (person)
- Reznik — cosponsor (person)
- Robinson — cosponsor (person)
- Rosenberg — cosponsor (person)
- Stein — cosponsor (person)
- Tarlau — cosponsor (person)
- Turner — cosponsor (person)
- Valderrama — cosponsor (person)
- Waldstreicher — cosponsor (person)

## Timeline

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

- **2018-01-18** First Reading Economic Matters `referral-committee`
- **2018-01-24** Hearing 2/01 at 1:00 p.m.
- **2018-02-06** Favorable Report by Economic Matters `committee-passage-favorable`
- **2018-02-07** Favorable Report Adopted `committee-passage-favorable`
- **2018-02-07** Second Reading Passed
- **2018-02-09** Third Reading Passed (87-48) `passage`
- **2018-02-12** First Reading Education, Health, and Environmental Affairs `referral-committee`
- **2018-03-29** Favorable Report by Education, Health, and Environmental Affairs `committee-passage-favorable`
- **2018-03-29** Favorable Report Adopted `committee-passage-favorable`
- **2018-03-29** Second Reading Passed
- **2018-03-30** Third Reading Passed (41-5) `passage`
- **2018-04-02** Returned Passed
- **2018-05-15** Approved by the Governor - Chapter 768 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/965a5e05-2f62-4e0b-bb88-f608a8d103d9`. Confidence: reported (aggregated from official Maryland legislature records).