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 in MI 10,182
- Driver Fitness in MI 8,181
- Hazardous Materials Compliance in MI 773
- Hours-of-Service Compliance in MI 5,256
- Unsafe Driving in MI 26,249
- Vehicle Maintenance in MI 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.
What this page shows
The page covers Michigan Controlled Substances/Alcohol violations in the FMCSA Safety Measurement System register. It lists 173 violations recorded, 75,331 registered carriers in the state, and 83,893 state inspections. It also lists Michigan carriers by fleet size, from 39,066 with 1 power unit to 46 with 1,000 or more power units.