Data Provenance, Methodology & Regulatory Compliance
Complete transparency on how commercial motor carrier records, roadside inspections, violation severity scores, and insurance filings are sourced and processed.
🏛️ Official Data Sources
All carrier identity, census, and safety inspection data displayed on CarrierSafetyData is compiled directly from public record datasets maintained by the United States Department of Transportation (DOT) and the Federal Motor Carrier Safety Administration (FMCSA):
- MCMIS Company Census File: Form MCS-150 biennial updates for registered interstate and intrastate motor carriers.
- SMS (Safety Measurement System) Input Files: Roadside inspection records (Levels 1–6), violation codes under Title 49 CFR, and state-reported crash logs.
- Licensing & Insurance (L&I) Database: Operating authority status, active BMC-91X auto liability filings, and surety bonds.
🛡️ FAST Act § 5223 Legal Compliance
Pursuant to Section 5223 of the Fixing America’s Surface Transportation (FAST) Act of 2015, the FMCSA restricted the public display of official SMS percentile rankings and relative safety alerts for property-carrying commercial motor carriers.
CarrierSafetyData strictly complies with all federal regulations. We display only factual, unweighted roadside inspection violation counts, reportable crash totals, and objective mathematical comparisons against federal national averages. We do not display or publish proprietary government percentiles.
📝 Claim or Request Data Refresh for a Carrier Profile
Are you the authorized safety manager, officer, or owner of a commercial carrier listed on this portal?
Carrier records are refreshed on a rolling 30-day cycle following FMCSA data releases. If you have recently updated your MCS-150 filing or completed a DataQ violation challenge with federal authorities, you may submit a data refresh request to expedite index updating.