FMCSA · Safety Measurement System register · Michigan

Controlled Substances/Alcohol in Michigan

• 173Violations recorded
• 75,331Registered carriers in the state
• 83,893State inspections addressing it

Driving under the influence of drugs or alcohol. Michigan carries 173 violations in this category, out of 14,736 recorded nationally, which places it 30 of 51 jurisdictions the register covers. Its share of the national figure is 0.012 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 39,066
• 2 to 5 power units 26,256
• 6 to 20 power units 5,695
• 21 to 100 power units 1,310
• 101 to 1,000 power units 209
• 1,000 or more power units 46

Other categories recorded in Michigan

• Crash Indicator 10,182
• Driver Fitness 8,181
• Hazardous Materials Compliance 773
• Hours-of-Service Compliance 5,256
• Unsafe Driving 26,249
• Vehicle Maintenance 69,829

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

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.