Dyed Diesel Fuel Search Amendments
HB 11 amends Utah’s law regarding searches for dyed diesel fuel violations. It clarifies that government officials (including law enforcement) may only inspect a vehicle’s fuel for such violations if they have probable cause, the vehicle owner’s consent, or are conducting a search at a port-of-entry. Crucially, the bill states that simply observing a diesel-powered vehicle on a highway does not create sufficient probable cause for an inspection. This change directly affects law enforcement officers and vehicle owners by setting clear limits on when fuel inspections can occur. The amendment does not alter the underlying prohibition on using dyed diesel on highways or the associated penalties.
Bill status
signed
all 5 stages cleared
Introduction
Jan 2026
Committee Review
Jan 2026
House Passage
Feb 2026
Senate Passage
Feb 2026
Signed into Law
Feb 2026
Introduced Jan 20, 2026
Signed Feb 27, 2026
Maddy AI version diff · 1 comparison
What changed between versions
Introduced
→
Enrolled
·
3 edits
·
Feb 27, 2026
MINOR
This bill updates the text of Utah Code Section 59-13-320.5 to clarify the rules for searching vehicles for illegal dyed diesel fuel. It establishes that law enforcement can only search a vehicle if they have probable cause, the owner consents, or the search happens at a port-of-entry. Crucially, it adds a protection stating that simply seeing a diesel vehicle on the road is not enough to justify a search.
Scope change
The scope of enforcement is narrowed by adding specific conditions under which a search is legal and explicitly removing the ability to search based solely on the type of fuel used.
ENFORCEMENT
Added a requirement that government officials must have probable cause, consent, or be at a port-of-entry to inspect fuel tanks for dyed diesel.
Added a specific rule stating that merely observing a diesel vehicle on a highway does not constitute probable cause for a search.
TECHNICAL
Reformatted the bill text from a standard legislative draft style to an official enrolled copy format with line numbers and headers.
Floor votes · Senate Feb 5, 2026 · House Jan 20, 2026
How they voted
28–0
Passed · 1 other
Total votes 29
Feb 5, 2026
D
Democratic6
100% Yea
N
Forward1
100% Yea
R
Republican22
95% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
35
Key actions
7
Committee
3
Feb 27, 2026
Signed into law
Governor Signed
executive
Feb 5, 2026
Lower · Passed
House/ signed by Speaker/ sent for enrolling
lower
Feb 5, 2026
Lower · Passed
Senate/ signed by President/ returned to House
lower
Feb 5, 2026
Upper · Passed
Senate/ passed 3rd reading
upper
Jan 29, 2026
Upper · Passed
Senate/ committee report favorable [Senate Revenue and Taxation Committee]
upper
Jan 28, 2026
Upper · Passed
Senate Comm - Favorable Recommendation [Senate Revenue and Taxation Committee]
upper
Jan 23, 2026
Committee
Senate/ to standing committee [Senate Revenue and Taxation Committee]
upper
Jan 21, 2026
Introduced
Senate/ 1st reading (Introduced)
upper
Jan 20, 2026
Upper · Passed
House/ passed 3rd reading
upper
Jan 20, 2026
Introduced
House/ 1st reading (Introduced)
lower
1 primary · 1 co-sponsor
Sponsors
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