HB 222 Maryland House of Delegates · 2025 Regular Session

Public Safety - Fuel Gas Piping Systems and Corrugated Stainless Steel Tubing - Prohibitions and Study

HB 222 prohibits the sale, transfer, or use of corrugated stainless steel tubing (CSST) for fuel gas piping systems unless it meets specific safety standards: either the LC1027 standard from the International Fuel and Gas Code or proven resistance to 36 coulombs of electrical arcing. It directly affects builders, contractors, and suppliers working on new construction or major renovations (over 50% of building square footage) of natural gas or propane piping systems in Maryland. The bill mandates compliance for these systems and imposes civil penalties up to $1,000 for violations. It takes effect October 1, 2027.

Bill status signed all 5 stages cleared

Introduction

Oct 2024

Committee Review

Apr 2025

House of Delegates Passage

Apr 2025

Senate Passage

Apr 2025

Signed into Law

May 2025

Introduced Oct 29, 2024 Signed May 6, 2025

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What changed between versions

Third - Public Safety - Fuel Gas Piping Systems and Corrugated Stainless Steel Tubing - Prohibitions and Study → Enrolled - Public Safety - Fuel Gas Piping Systems and Corrugated Stainless Steel Tubing - Prohibitions and Study · 3 edits · May 6, 2025

MINOR

The bill was finalized and enrolled for the Governor's signature, changing the header to reflect its official status. The most significant policy change is the addition of the Maryland Department of Labor to the required study team, expanding the scope of the investigation into fuel gas piping hazards beyond just the State Fire Marshal. The text was also cleaned up to remove redundant phrases and formatting artifacts from the legislative process.

Scope change

The bill's scope was expanded to include the Maryland Department of Labor in the mandated study regarding fuel gas piping fire hazards, whereas the original version only assigned this task to the Office of the State Fire Marshal.

REQUIREMENT

Added the Maryland Department of Labor as a required participant in the study on fuel gas piping fire hazards alongside the Office of the State Fire Marshal.

TECHNICAL

Updated the bill header and title to reflect its status as an 'Enrolled Bill' ready for the Governor's approval.

Refined the explanatory text regarding the study requirements to remove redundant clauses and clarify the specific sections of law involved.

First - Public Safety - Corrugated Stainless Steel Tubing for Fuel Gas Piping Systems - Requirements and Prohibitions → Third - Public Safety - Fuel Gas Piping Systems and Corrugated Stainless Steel Tubing - Prohibitions and Study · 6 edits

MODERATE

The bill was significantly expanded from a narrow prohibition on specific non-compliant corrugated stainless steel tubing to a broader public safety measure that includes civil penalties, a comprehensive study requirement, and expanded scope covering all fuel gas piping systems. The changes add new sponsors, update the bill title to reflect the broader study mandate, and introduce detailed requirements for the State Fire Marshal to investigate fire hazards associated with various gas piping systems.

Scope change

The bill's scope expanded from only prohibiting sale of non-compliant corrugated stainless steel tubing to also requiring a comprehensive study of all fuel gas piping systems and establishing additional civil penalty provisions.

REQUIREMENT

Added requirement for Office of the State Fire Marshal to conduct a comprehensive study of fire hazards associated with fuel gas piping systems, including analysis of lightning strike risks, effectiveness of existing standards, and feasibility of new requirements.

Added specific study requirements including comparison of different piping system risks, lightning strike analysis, identification of best practices, and assessment of non-arc-resistant jacketed tubing prevalence.

Added requirement for Office to consult with State Fire Prevention Commission, Department of Labor, local government entities, and manufacturers during the study.

ENFORCEMENT

Modified penalty section to explicitly address use of non-arc-resistant jacketed corrugated stainless steel tubing in building construction.

ELIGIBILITY

Added new sponsors to the bill: Delegates Boyce, Holmes, Otto, Ruth, and Terrasa.

TIMELINE

Added committee report status showing favorable with amendments and house action adopted, with second reading on February 27, 2025.

Floor votes · Senate Mar 24, 2025 · House of Delegates Mar 25, 2025

How they voted

46–0

Passed

Total votes 46

Mar 24, 2025

D Democratic33

33 Yea

100% Yea

R Republican13

13 Yea

100% Yea

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Amendments

May 6, 2025

Signed into law

Approved by the Governor - Chapter 385

executive

Apr 7, 2025

Lower · Passed

Passed Enrolled

lower

Apr 7, 2025

Lower · Passed

Third Reading Passed

lower

Apr 7, 2025

Lower · Passed

Conference Committee Report {

lower

Apr 7, 2025

Upper · Passed

Senate Conference Committee Appointed (Senators Feldman, Brooks and Gallion)

upper

Apr 7, 2025

Upper · Passed

House Conference Committee Appointed (Delegates Holmes, Stewart and Baker)

upper

Apr 7, 2025

Introduced

House Refuses Concur Senate Amendments

upper

Apr 5, 2025

Lower · Passed

House Conference Committee Appointed (Delegates Holmes, Stewart and Baker)

lower

Apr 5, 2025

Introduced

House Refuses Concur Senate Amendments

lower

Apr 4, 2025

Upper · Passed

Third Reading Passed

upper

Apr 4, 2025

Upper · Passed

Favorable with Amendments {

upper

Apr 4, 2025

Upper · Passed

Favorable with Amendments Report by Education, Energy, and the Environment

upper

Mar 25, 2025

House Of Delegates · Passed

House of Delegates Vote: pass (134-2-3)

house of delegates

Mar 24, 2025

Senate · Passed

Senate Vote: pass (46-0)

senate

Mar 12, 2025

Committee

Referred Education, Energy, and the Environment

upper

Mar 11, 2025

Lower · Passed

Third Reading Passed

lower

Mar 11, 2025

Lower · Passed

Favorable with Amendments {

lower

Mar 10, 2025

Lower · Passed

Favorable with Amendments Report by Environment and Transportation

lower

Jan 8, 2025

Committee

First Reading Environment and Transportation

lower

Oct 29, 2024

Introduced

Pre-filed

lower

6 primary · 0 co-sponsors