Guide
Safety Scores and Commercial Truck Insurance Premiums
FMCSA publishes safety data on commercial carriers through the Safety Measurement System and the SAFER Company Snapshot. This data is publicly accessible, which means insurers, brokers, and shippers can all review a carrier's safety record before making coverage or load decisions.
Last reviewed: June 22, 2026
Plain-English summary
Safety score conversations in underwriting are not automatic rate multipliers—they are part of the information picture. A carrier who reviews their own FMCSA data before renewal is better positioned to explain their record than one who discovers elevated scores during an underwriter conversation.
What FMCSA SMS data covers
- Unsafe Driving BASIC: speeding, reckless driving, improper lane change, inattention violations
- Hours-of-Service Compliance BASIC: HOS violations, falsified logs, ELD violations
- Vehicle Maintenance BASIC: brake violations, light violations, cargo securement findings
- Controlled Substances/Alcohol BASIC: positive drug/alcohol tests from roadside or post-accident contexts
- Driver Fitness BASIC: operating without valid medical certificate or proper endorsements
- Hazmat Compliance BASIC: placard, label, and routing violations (if applicable)
How to review your own record before renewal
The FMCSA SAFER Company Snapshot is searchable by USDOT number at no cost. It shows authority status, carrier size, inspection and crash history, and current safety rating if one exists. The SMS percentile scores can be reviewed at the FMCSA SMS portal. A carrier who reviews this before the renewal call can address any elevated BASICs proactively rather than being surprised during underwriting.
Improving the record over time
SMS percentile scores update as new inspection data is added and older data ages off. FMCSA data typically reflects a 24-month window for inspections and violations. Incorrect violation entries can be challenged through the DataQs system (dataqs.fmcsa.dot.gov). Sustained clean inspection records over 18 to 24 months are the primary driver of score improvement. There is no shortcut that removes accurate violation data ahead of schedule.
Who this guide helps
- Carriers reviewing SMS data before renewal
- Fleets with recent inspections or crashes
- New authorities trying to understand public safety signals
What this guide can clarify
- How public safety information can influence underwriting questions
- Why DataQs and record review may matter
- What to prepare before an underwriter asks
Where paperwork gets misread
What this guide does not replace
- A promise that a specific score changes premium by a fixed amount
- Legal advice about challenging violations
- A replacement for FMCSA's official portals
Review mistakes to avoid
- Discovering public data during the renewal call
- Ignoring incorrect carrier information
- Assuming old violations have no effect
- Failing to explain corrective steps
Records to pull before you act
- SAFER snapshot
- SMS BASIC details
- Inspection and crash history
- Corrective action notes
- Maintenance and driver records
Questions to bring to the agent
- Which safety data is the underwriter seeing?
- Are any records inaccurate or duplicated?
- What documentation shows the carrier addressed the issue?
Sources
- Safety Measurement System Official Federal Motor Carrier Safety Administration — checked 2026-05-19
- SAFER Company Snapshot Official Federal Motor Carrier Safety Administration — checked 2026-05-19
- Auto Insurance Regulator National Association of Insurance Commissioners — checked 2026-05-19
Questions carriers ask
Do insurers have direct access to FMCSA data?
The SAFER and SMS systems are publicly accessible. Many commercial truck insurers or underwriters use carrier safety data as part of the underwriting process alongside the application information the carrier provides.
What does a high BASIC percentile score mean?
A high percentile score means the carrier has more violations relative to similarly sized carriers in that category—it is not a good outcome. Lower percentile scores indicate fewer violations compared to peers.
Can a carrier contest a violation that appears in the SMS?
Yes. Incorrect or duplicated data entries can be contested through the FMCSA DataQs system. Successfully challenged data can be corrected or removed, which may improve the percentile score over time.
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