FMCSA · Safety Measurement System register · Arizona

Hazardous Materials Compliance in Arizona

• 1,586Violations recorded
• 29,841Registered carriers in the state
• 5,458State inspections addressing it

Packaging, placarding and handling of hazardous materials. Arizona carries 1,586 violations in this category, out of 42,552 recorded nationally, which places it 5 of 51 jurisdictions the register covers. Its share of the national figure is 0.037 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 4.5.

The state’s carriers by fleet size

• 1 power unit 16,803
• 2 to 5 power units 8,486
• 6 to 20 power units 2,299
• 21 to 100 power units 670
• 101 to 1,000 power units 140
• 1,000 or more power units 32

Other categories recorded in Arizona

• Controlled Substances/Alcohol 466
• Crash Indicator 4,716
• Driver Fitness 8,271
• Hours-of-Service Compliance 44,984
• Unsafe Driving 18,249
• Vehicle Maintenance 177,896

Hazardous Materials Compliance across every jurisdiction → Every category in Arizona →

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.