---
type: "Bill"
title: "Natural Resources - Wildland Areas - Overhead Transmission Lines"
description: "Natural Resources - Wildland Areas - Overhead Transmission Lines"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2025"
identifier: "SB 399"
citation: "Maryland SB 399 (2025)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["McKay"]
version_count: 4
action_count: 16
vote_count: 4
first_action: "2025-01-20"
last_action: "2025-05-13"
source: "openstates"
source_identifier: "ocd-bill/920873fd-3b3c-427f-a70f-40c6a3bf5e08"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/sb0399?ys=2025RS&search=True"
source_hash: "7ec5b5f77de152e69419f7c8ead00464f9378a93e994466abe1f88acfc0de3bd"
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 SB 399 (2025) — Natural Resources - Wildland Areas - Overhead Transmission Lines

## Version chain

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

1. **Chapter - Natural Resources - Wildland Areas - Overhead Transmission Lines** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/Chapters_noln/CH_572_sb0399e.pdf)
2. **Enrolled - Natural Resources - Wildland Areas - Overhead Transmission Lines** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/sb/sb0399e.pdf)
3. **First - Natural Resources - Wildland Areas - Overhead Transmission Lines** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/sb/sb0399f.pdf)
4. **Third - Natural Resources - Wildland Areas - Overhead Transmission Lines** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/sb/sb0399t.pdf)

## Votes

- On Third Reading (Amend) — **109–29** (pass) · lower
- On Third Reading — **42–4** (pass) · upper
- FLA Del. Grammer /633626/1 — **37–101** (fail) · lower
- Bill is on Third Reading for Final Passage. — **43–1** (pass) · upper

## Sponsors

- McKay — primary (person)

## Timeline

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

- **2025-01-20** First Reading Education, Energy, and the Environment `referral-committee`
- **2025-01-23** Hearing 2/11 at 1:00 p.m.
- **2025-03-11** Favorable with Amendments Report by Education, Energy, and the Environment `committee-passage-favorable`
- **2025-03-12** Favorable with Amendments { `committee-passage-favorable`
- **2025-03-12** Second Reading Passed with Amendments
- **2025-03-12** Third Reading Passed `passage`
- **2025-03-13** Referred Economic Matters `referral-committee`
- **2025-04-04** Favorable with Amendments Report by Economic Matters `committee-passage-favorable`
- **2025-04-04** Favorable with Amendments { `committee-passage-favorable`
- **2025-04-04** Second Reading Passed with Amendments
- **2025-04-07** Floor Amendment {
- **2025-04-07** Third Reading Passed `passage`
- **2025-04-07** Senate Concurs House Amendments
- **2025-04-07** Third Reading Passed `passage`
- **2025-04-07** Passed Enrolled
- **2025-05-13** Approved by the Governor - Chapter 572 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/920873fd-3b3c-427f-a70f-40c6a3bf5e08`. Confidence: reported (aggregated from official Maryland legislature records).