FMCSA · Safety Measurement System register · District of Columbia

Controlled Substances/Alcohol in District of Columbia

• 11Violations recorded
• 795Registered carriers in the state
• 7,773State inspections addressing it

Driving under the influence of drugs or alcohol. District of Columbia carries 11 violations in this category, out of 14,736 recorded nationally, which places it 50 of 51 jurisdictions the register covers. Its share of the national figure is 0.001 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 405
• 2 to 5 power units 199
• 6 to 20 power units 51
• 21 to 100 power units 29
• 101 to 1,000 power units 6
• 1,000 or more power units 3

Other categories recorded in District of Columbia

• Crash Indicator 368
• Driver Fitness 813
• Hazardous Materials Compliance 19
• Hours-of-Service Compliance 38
• Unsafe Driving 301
• Vehicle Maintenance 3,440

Controlled Substances/Alcohol across every jurisdiction → Every category in District of Columbia →

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.