SB 253 Maryland Senate · 2025 Regular Session

Controlled Hazardous Substance Facility Permit - Research Facilities - Chemical Warfare Material Requirements

SB 253 exempts U.S. Department of Defense-designated research facilities from certain chemical warfare material permit requirements when incinerating such materials for research, development, or demonstration purposes. Specifically, it modifies Maryland’s environmental code (Sections 7-239.3 and 7-239.4) to exclude these facilities from standard permit conditions related to emissions monitoring, destruction efficiency, and emergency planning during R&D activities. The exemption applies only to facilities explicitly authorized by the U.S. Department of Defense for chemical warfare technology research, not to general disposal or commercial operations. This change does not alter broader environmental regulations or safety standards for non-research facilities handling chemical warfare materials.
Bill status signed all 5 stages cleared
Introduction
Oct 2024
Committee Review
Apr 2025
Senate Passage
Apr 2025
House of Delegates Passage
Apr 2025
Signed into Law
May 2025
Introduced Oct 4, 2024 Signed May 13, 2025
Maddy AI version diff · 2 comparisons

What changed between versions

Third - Controlled Hazardous Substance Facility Permit - Research Facilities - Chemical Warfare Material Requirements Enrolled - Controlled Hazardous Substance Facility Permit - Research Facilities - Chemical Warfare Material Requirements · 3 edits · May 13, 2025
MINOR
The bill was finalized as an enrolled version, adding formal signatures and proofreading sections required for Governor approval. Substantively, the text was reorganized to insert a new definition for 'Maximum Credible Event' and renumbered existing definitions, but the core legal requirements for chemical warfare material incineration remain unchanged.
Scope change
The bill's scope and applicability are unchanged; the text was restructured to accommodate the new definition and formatting standards.
DEFINITION

Added a new definition for 'Maximum Credible Event' to describe hypothetical worst-case explosions, fires, or toxic releases.

TECHNICAL

Reorganized the bill structure to insert the new definition and updated the header to reflect its status as an enrolled bill.

PROCEDURAL

Added sections for proofreader signatures and Governor approval details required for final enactment.

Floor votes · Senate Mar 20, 2025 · House of Delegates Mar 20, 2025

How they voted

420
Passed · 4 other
Total votes 46
Mar 20, 2025
D Democratic33
30 Yea 3
90% Yea
R Republican13
12 Yea 1
92% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
24
Key actions
11
Committee
6
Amendments
1
May 13, 2025
Signed into law
Approved by the Governor - Chapter 445
executive
Apr 5, 2025
Upper · Passed
Passed Enrolled
upper
Apr 5, 2025
Upper · Passed
Third Reading Passed
upper
Apr 5, 2025
Introduced
Senate Concurs House Amendments
upper
Apr 3, 2025
Lower · Passed
Third Reading Passed
lower
Apr 3, 2025
Lower · Passed
Favorable with Amendments {
lower
Apr 3, 2025
Lower · Passed
Favorable with Amendments Report by Environment and Transportation
lower
Mar 20, 2025
Senate · Passed
Senate Vote: pass (42-0-4)
senate
Mar 20, 2025
House Of Delegates · Passed
House of Delegates Vote: pass (131-5-4)
house of delegates
Mar 13, 2025
Committee
Referred Environment and Transportation
lower
Mar 12, 2025
Upper · Passed
Third Reading Passed
upper
Mar 12, 2025
Upper · Passed
Favorable with Amendments {
upper
Mar 11, 2025
Upper · Passed
Favorable with Amendments Report by Education, Energy, and the Environment
upper
Jan 8, 2025
Committee
First Reading Education, Energy, and the Environment
upper
Oct 4, 2024
Introduced
Pre-filed
upper
0 primary · 0 co-sponsors

Sponsors

No sponsor information available.