Direct links to government portals, regulations, and tools. No middleman — go straight to the source.
Apply for USDOT number and Operating Authority
Verify any carrier's safety record and authority status
Official Federal Motor Carrier Safety Administration website
Check insurance and authority filing status
Unified Carrier Registration — annual registration for interstate carriers
Get your Employer Identification Number free from the IRS
International Fuel Tax Agreement information by state
Full text of 49 CFR Parts 300–399
Check your CSA scores and BASICs
Order driver safety records before hiring
Find FMCSA-registered ELD providers
49 CFR Part 382 — FMCSA drug and alcohol requirements
Required for all CDL drivers — register and query
Official DOT drug and alcohol testing procedure regulations
Register for hazardous materials transportation authority
Federal hazmat regulations and training requirements
Roadside inspection standards and out-of-service criteria
Find your state's DOT and motor carrier programs
FMCSAFiler walks you through every step — from your first USDOT number to staying compliant year after year.