FMCSA · Safety Measurement System register · Montana

Controlled Substances/Alcohol in Montana

• 172Violations recorded
• 8,670Registered carriers in the state
• 58,940State inspections addressing it

Driving under the influence of drugs or alcohol. Montana carries 172 violations in this category, out of 14,736 recorded nationally, which places it 31 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 4,274
• 2 to 5 power units 3,297
• 6 to 20 power units 753
• 21 to 100 power units 154
• 101 to 1,000 power units 22
• 1,000 or more power units 7

Other categories recorded in Montana

• Crash Indicator 1,203
• Driver Fitness 2,551
• Hazardous Materials Compliance 349
• Hours-of-Service Compliance 7,237
• Unsafe Driving 1,120
• Vehicle Maintenance 29,890

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

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.