FMCSA · Safety Measurement System register · Tennessee

Controlled Substances/Alcohol in Tennessee

• 561Violations recorded
• 23,282Registered carriers in the state
• 176,891State inspections addressing it

Driving under the influence of drugs or alcohol. Tennessee carries 561 violations in this category, out of 14,736 recorded nationally, which places it 6 of 51 jurisdictions the register covers. Its share of the national figure is 0.038 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 12,172
• 2 to 5 power units 7,102
• 6 to 20 power units 2,082
• 21 to 100 power units 640
• 101 to 1,000 power units 144
• 1,000 or more power units 30

Other categories recorded in Tennessee

• Crash Indicator in TN 5,986
• Driver Fitness in TN 7,471
• Hazardous Materials Compliance in TN 532
• Hours-of-Service Compliance in TN 13,366
• Unsafe Driving in TN 20,057
• Vehicle Maintenance in TN 76,167

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

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.