FMCSA · Safety Measurement System register · Indiana

Controlled Substances/Alcohol in Indiana

• 409Violations recorded
• 44,843Registered carriers in the state
• 107,285State inspections addressing it

Driving under the influence of drugs or alcohol. Indiana carries 409 violations in this category, out of 14,736 recorded nationally, which places it 13 of 51 jurisdictions the register covers. Its share of the national figure is 0.028 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 23,059
• 2 to 5 power units 14,884
• 6 to 20 power units 4,001
• 21 to 100 power units 1,051
• 101 to 1,000 power units 185
• 1,000 or more power units 29

Other categories recorded in Indiana

• Crash Indicator 9,944
• Driver Fitness 5,615
• Hazardous Materials Compliance 411
• Hours-of-Service Compliance 31,007
• Unsafe Driving 56,028
• Vehicle Maintenance 48,653

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

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.