FMCSA · Safety Measurement System register · Wyoming

Controlled Substances/Alcohol in Wyoming

• 266Violations recorded
• 6,457Registered carriers in the state
• 28,057State inspections addressing it

Driving under the influence of drugs or alcohol. Wyoming carries 266 violations in this category, out of 14,736 recorded nationally, which places it 22 of 51 jurisdictions the register covers. Its share of the national figure is 0.018 as a fraction, banked by the build rather than turned into a ratio here. Nationally, a violation in this category carries an average severity weight of 8.55.

The state’s carriers by fleet size

• 1 power unit 3,118
• 2 to 5 power units 2,302
• 6 to 20 power units 674
• 21 to 100 power units 150
• 101 to 1,000 power units 8
• 1,000 or more power units 0

Other categories recorded in Wyoming

• Crash Indicator 1,826
• Driver Fitness 3,089
• Hazardous Materials Compliance 228
• Hours-of-Service Compliance 8,218
• Unsafe Driving 2,523
• Vehicle Maintenance 28,850

Controlled Substances/Alcohol across every jurisdiction → Every category in Wyoming →

Figures from the federal source files: EPA’s ECHO downloads, CMS provider files and the FMCSA census.

Counts from FMCSA SMS input files on data.transportation.gov: kjg3-diqy (Motor Carrier Census, 2,122,441 rows), rbkj-cgst (Inspection, 5,834,148), 8mt8-2mdr (Violation, 6,808,260), 4wxs-vbns (Crash, 255,582), p2mt-9ige (Out of Service Orders, 399,600); SoQL aggregates fetched 2026-09-16. The rank is taken over the jurisdictions this desk publishes, and the national figure beside it is the register’s own total for the category.