FMCSA · Safety Measurement System register

Connecticut motor carriers

• 20,725Registered carriers
• 37,958Inspections on file
• 2,880Reportable crashes
• 30Fatal crashes
• 10,363Inspections with an out-of-service order
• 1,302Hazardous materials inspections
• 63Hazmat carriers
• 209Passenger carriers

The census registers 20,725 motor carriers in Connecticut, 63 of them carrying hazardous materials and 209 of them carrying passengers. Inspections recorded against carriers here number 37,958, 10,363 of which ended in an out-of-service order, and 2,880 reportable crashes, 30 of them fatal, are on file.

By category

• Controlled Substances/Alcohol 130 · 37 of 51 jurisdictions
• Crash Indicator 2,880 · 31 of 51 jurisdictions
• Driver Fitness 4,574 · 27 of 51 jurisdictions
• Hazardous Materials Compliance 243 · 36 of 51 jurisdictions
• Hours-of-Service Compliance 4,549 · 39 of 51 jurisdictions
• Unsafe Driving 7,935 · 28 of 51 jurisdictions
• Vehicle Maintenance 49,155 · 25 of 51 jurisdictions

Carriers by fleet size in Connecticut

• 1 power unit 11,192
• 2 to 5 power units 6,707
• 6 to 20 power units 1,505
• 21 to 100 power units 296
• 101 to 1,000 power units 57
• 1,000 or more power units 18

Carriers by the work they do

• Interstate 11,930
• Intrastate, hazardous materials 8,105
• Intrastate, non-hazardous 690

Towns the carriers are based in

Danbury (820) · Bridgeport (778) · Stamford (757) · Hartford (649) · Norwalk (572) · Waterbury (565) · New Haven (427) · East Hartford (383) · New Britain (377) · Meriden (327) · West Haven (319) · Bristol (283) · Wallingford (282) · Hamden (279) · Bloomfield (275) · Stratford (273) · Shelton (250) · Manchester (239) · Milford (236) · Windsor (235) · Middletown (220) · New Milford (220) · North Haven (206) · Newington (204) · South Windsor (191)

Unsafe Driving is the category a broker is most often shown first. Every jurisdiction →

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. A category’s rank is the register’s own count for this jurisdiction set against the same count for the other jurisdictions on the desk, and the town names are the census’s own spelling.