FMCSA · Safety Measurement System register

Maryland motor carriers

• 42,485Registered carriers
• 158,073Inspections on file
• 4,372Reportable crashes
• 86Fatal crashes
• 35,632Inspections with an out-of-service order
• 7,553Hazardous materials inspections
• 112Hazmat carriers
• 656Passenger carriers

The census registers 42,485 motor carriers in Maryland, 112 of them carrying hazardous materials and 656 of them carrying passengers. Inspections recorded against carriers here number 158,073, 35,632 of which ended in an out-of-service order, and 4,372 reportable crashes, 86 of them fatal, are on file.

By category

• Controlled Substances/Alcohol 454 · 11 of 51 jurisdictions
• Crash Indicator 4,372 · 23 of 51 jurisdictions
• Driver Fitness 13,953 · 6 of 51 jurisdictions
• Hazardous Materials Compliance 583 · 19 of 51 jurisdictions
• Hours-of-Service Compliance 5,838 · 34 of 51 jurisdictions
• Unsafe Driving 18,991 · 9 of 51 jurisdictions
• Vehicle Maintenance 123,640 · 7 of 51 jurisdictions

Carriers by fleet size in Maryland

• 1 power unit 24,152
• 2 to 5 power units 12,604
• 6 to 20 power units 2,854
• 21 to 100 power units 668
• 101 to 1,000 power units 93
• 1,000 or more power units 40

Carriers by the work they do

• Interstate 24,136
• Intrastate, hazardous materials 17,401
• Intrastate, non-hazardous 948

Towns the carriers are based in

Baltimore (4,042) · Silver Spring (1,396) · Frederick (1,044) · Gaithersburg (908) · Laurel (852) · Hyattsville (838) · Glen Burnie (793) · Hagerstown (723) · Upper Marlboro (668) · Rockville (650) · Waldorf (645) · Westminster (567) · Bowie (563) · Annapolis (551) · Pasadena (545) · Beltsville (493) · Salisbury (487) · Lanham (441) · Clinton (428) · Columbia (426) · Germantown (407) · Owings Mills (385) · Easton (347) · Elkridge (327) · Bel Air (297)

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.