FMCSA · Safety Measurement System register · Louisiana

Controlled Substances/Alcohol in Louisiana

• 150Violations recorded
• 11,164Registered carriers in the state
• 89,362State inspections addressing it

Driving under the influence of drugs or alcohol. Louisiana carries 150 violations in this category, out of 14,736 recorded nationally, which places it 34 of 51 jurisdictions the register covers. Its share of the national figure is 0.010 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 6,271
• 2 to 5 power units 2,871
• 6 to 20 power units 951
• 21 to 100 power units 315
• 101 to 1,000 power units 54
• 1,000 or more power units 15

Other categories recorded in Louisiana

• Crash Indicator 5,227
• Driver Fitness 3,395
• Hazardous Materials Compliance 630
• Hours-of-Service Compliance 11,588
• Unsafe Driving 16,829
• Vehicle Maintenance 40,681

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

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.