FMCSA · Safety Measurement System register · Oklahoma

Controlled Substances/Alcohol in Oklahoma

• 262Violations recorded
• 26,338Registered carriers in the state
• 67,729State inspections addressing it

Driving under the influence of drugs or alcohol. Oklahoma carries 262 violations in this category, out of 14,736 recorded nationally, which places it 23 of 51 jurisdictions the register covers. Its share of the national figure is 0.018 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 14,232
• 2 to 5 power units 8,687
• 6 to 20 power units 2,062
• 21 to 100 power units 534
• 101 to 1,000 power units 75
• 1,000 or more power units 24

Other categories recorded in Oklahoma

• Crash Indicator 4,574
• Driver Fitness 3,916
• Hazardous Materials Compliance 893
• Hours-of-Service Compliance 4,788
• Unsafe Driving 7,771
• Vehicle Maintenance 49,068

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

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.