FMCSA · Safety Measurement System register · Alabama

Controlled Substances/Alcohol in Alabama

• 306Violations recorded
• 33,702Registered carriers in the state
• 89,496State inspections addressing it

Driving under the influence of drugs or alcohol. Alabama carries 306 violations in this category, out of 14,736 recorded nationally, which places it 18 of 51 jurisdictions the register covers. Its share of the national figure is 0.021 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 18,569
• 2 to 5 power units 11,219
• 6 to 20 power units 2,315
• 21 to 100 power units 519
• 101 to 1,000 power units 109
• 1,000 or more power units 23

Other categories recorded in Alabama

• Crash Indicator 5,765
• Driver Fitness 6,614
• Hazardous Materials Compliance 508
• Hours-of-Service Compliance 21,345
• Unsafe Driving 7,427
• Vehicle Maintenance 98,449

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

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.