Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)
HB 1322 requires all operators of gasoline-powered vessels on Maryland waters to have carbon monoxide warning labels clearly visible near the transom and helm of the vessel. This law directly affects boat operators and owners who operate gasoline-powered vessels, amending Maryland's State Boat Act to mandate these labels. The key provision specifies the exact locations where labels must be affixed to warn of carbon monoxide risks. The law takes effect on October 1, 2025.
Bill status
signed
all 5 stages cleared
Introduction
Feb 2025
Committee Review
Apr 2025
House of Delegates Passage
Apr 2025
Senate Passage
Apr 2025
Signed into Law
May 2025
Introduced Feb 7, 2025
Signed May 13, 2025
Maddy AI version diff · 2 comparisons
What changed between versions
Third - Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)
→
Enrolled - Natural Resources - Vessels - Carbon Monoxide Warning Labels (Matthew's Law)
·
4 edits
·
May 13, 2025
MODERATE
The bill was finalized and enrolled for the Governor's signature, adding specific technical details to the carbon monoxide warning label requirement. The law now explicitly applies only to gasoline-powered vessels manufactured after July 31, 2007, that have accommodation spaces, swim platforms, or aft lounging areas. It also clarifies that warning labels must be placed near both the transom and the helm, and it prohibits the Department of Natural Resources from imposing penalties for violations.
Scope change
The bill's scope was narrowed by adding specific criteria (accommodation spaces, swim platforms, or aft lounging areas) to determine which vessels are subject to the new warning label requirement.
REQUIREMENT
Added specific vessel features (accommodation spaces, swim platforms, or aft lounging areas) that trigger the requirement for carbon monoxide warning labels.
Specified that warning labels must be affixed in conspicuous locations near both the transom and the helm.
ENFORCEMENT
Explicitly prohibited the Department of Natural Resources from imposing penalties for violating the warning label provisions.
TECHNICAL
Changed the bill status from 'Third Reading' to 'Enrolled' and updated the header to reflect final approval by the General Assembly.
Floor votes · Senate Mar 18, 2025 · House of Delegates Mar 24, 2025
How they voted
43–0
Passed · 3 other
Total votes 46
Mar 18, 2025
D
Democratic33
93% Yea
R
Republican13
92% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
17
Key actions
11
Committee
6
Amendments
1
May 13, 2025
Signed into law
Approved by the Governor - Chapter 451
executive
Apr 7, 2025
Lower · Passed
Passed Enrolled
lower
Apr 7, 2025
Lower · Passed
Third Reading Passed
lower
Apr 7, 2025
Introduced
House Concurs Senate Amendments
lower
Apr 4, 2025
Upper · Passed
Third Reading Passed
upper
Apr 3, 2025
Upper · Passed
Favorable with Amendments {
upper
Apr 3, 2025
Upper · Passed
Favorable with Amendments Report by Education, Energy, and the Environment
upper
Mar 24, 2025
House Of Delegates · Passed
House of Delegates Vote: pass (136-1-2)
house of delegates
Mar 18, 2025
Senate · Passed
Senate Vote: pass (43-0-3)
senate
Mar 17, 2025
Committee
Referred Education, Energy, and the Environment
upper
Mar 13, 2025
Lower · Passed
Third Reading Passed
lower
Mar 13, 2025
Lower · Passed
Favorable with Amendments {
lower
Mar 12, 2025
Lower · Passed
Favorable with Amendments Report by Environment and Transportation
lower
Feb 7, 2025
Committee
First Reading Environment and Transportation
lower
20 primary · 0 co-sponsors
Sponsors
Role
Legislator
Party
State
District
P
Anne Healey
DDemocratic
P
Bonnie Cullison
DDemocratic
P
Dana Stein
DDemocratic
P
Debra Davis
DDemocratic
P
Dylan Behler
DDemocratic
P
Jen Terrasa
DDemocratic
P
Jessica Feldmark
DDemocratic
P
JP
Joseline Peña-Melnyk
DDemocratic
P
Linda Foley
DDemocratic
P
Mary Lehman
DDemocratic
P
Michele Guyton
DDemocratic
P
Natalie Ziegler
DDemocratic
P
Nick Allen
DDemocratic
P
Pam Guzzone
DDemocratic
P
Regina Boyce
DDemocratic
P
Robbyn Lewis
DDemocratic
P
Sheila Ruth
DDemocratic
P
Teresa Woorman
DDemocratic
P
Terri Hill
DDemocratic
P
Vaughn Stewart
DDemocratic
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