Concerning toxicology testing by certified or accredited laboratories.
SB 5880 requires that toxicology testing for alcohol or drugs in DUI cases must be conducted by laboratories certified under international ISO/IEC 17025 standards for forensic testing, directly affecting drivers facing DUI charges and law enforcement. It specifies strict protocols for admissibility in court, including detailed requirements for breath test equipment calibration, sample collection procedures, and blood draw qualifications (limited to specific licensed medical professionals). The bill also mandates that any additional tests requested by the accused must use generally accepted methods, while maintaining that basic proof of proper testing procedures must be shown for results to be admitted. The law includes an expiration date and applies to both blood and breath testing under Washington’s DUI statutes.
Bill status
signed
all 5 stages cleared
Introduction
Dec 2025
Committee Review
Feb 2026
Senate Passage
Mar 2026
House Passage
Mar 2026
Signed into Law
Mar 2026
Introduced Dec 12, 2025
Signed Mar 18, 2026
Maddy AI version diff · 3 comparisons
What changed between versions
Second Substitute Bill
→
Second Substitute Passed Legislature
·
2 edits
MINOR
The bill added a formal certification page to document its passage by both legislative chambers. Substantively, it introduced new requirements for cities and counties contracting with laboratories for blood or breath analysis, mandating that lab personnel be available for defense interviews and agree to accept electronic service of legal documents.
Scope change
The bill now applies to any city or county that contracts with a laboratory for blood or breath analysis, requiring specific contractual terms regarding defense access and electronic service.
REQUIREMENT
Requires cities and counties to include specific terms in contracts with laboratories, ensuring lab personnel are available for defense interviews and accept electronic service of legal documents.
TECHNICAL
Added a formal certification page at the beginning of the bill to officially record its passage by the Senate and House.
Floor votes · Senate Mar 9, 2026 · House Mar 6, 2026
How they voted
51–0
Passed
Total votes 51
Mar 9, 2026
D
Democratic31
100% Yea
R
Republican20
100% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
32
Key actions
13
Committee
10
Mar 18, 2026
Signed into law
Governor signed.
executive
Mar 11, 2026
Lower · Passed
Speaker signed.
lower
Mar 10, 2026
Upper · Passed
President signed.
upper
Mar 9, 2026
Upper · Passed
Passed final passage; yeas, 49; nays, 0; absent, 0; excused, 0.
upper
Mar 9, 2026
Upper · Passed
Senate concurred in House amendments.
upper
Mar 6, 2026
Lower · Passed
Floor amendment(s) adopted.
lower
Feb 25, 2026
Committee
Referred to Rules 2 Review.
lower
Feb 24, 2026
Lower · Passed
CS - Majority; do pass.
lower
Feb 24, 2026
Lower · Passed
Executive action taken in the House Committee on Community Safety at 4:00 PM.
lower
Feb 19, 2026
Lower · Passed
Public hearing in the House Committee on Community Safety at 8:00 AM.
lower
Feb 9, 2026
Upper · Passed
Executive action taken in the Senate Committee on Ways & Means at 10:30 AM.
upper
Jan 26, 2026
Upper · Passed
Public hearing in the Senate Committee on Ways & Means at 4:00 PM.
upper
Jan 16, 2026
Committee
Referred to Ways & Means.
upper
Jan 15, 2026
Committee
On motion, referred to Ways & Means.
upper
Jan 15, 2026
Upper · Passed
Executive action taken in the Senate Committee on Law & Justice at 10:30 AM.
upper
Jan 13, 2026
Upper · Passed
Public hearing in the Senate Committee on Law & Justice at 8:00 AM.
upper
1 primary · 0 co-sponsors
Sponsors
Role
Legislator
Party
State
District
P
Keith Wagoner
RRepublican
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