- Where does this data originate?
- All of it is collected and published by the Federal Motor Carrier Safety Administration. It is public record. This site explains the data; it does not produce it.
- How often is it refreshed?
- Most datasets update weekly. Authority status and insurance filings can appear sooner. Roadside inspection data typically lags by several weeks and varies by reporting state.
- Does a Conditional rating prevent a carrier from hauling?
- No. A Conditional carrier retains operating authority and may legally haul. Companies may apply stricter internal standards, but that is a commercial policy rather than a regulatory bar.
- Why do so many carriers have no safety rating?
- Ratings follow compliance reviews, and reviews are prioritised by risk rather than performed universally. Most carriers have never had one.
- Can I compare BASIC percentiles between two carriers?
- Only with care. Percentiles are calculated within peer groups defined by inspection volume, so two carriers of very different size are not on the same scale.
- A carrier's percentile changed without any new inspection. Why?
- Data ages off after twenty-four months, and peer groups are recalculated. Both cause movement without new events.
- Does the Crash Indicator account for fault?
- Not in the public presentation. A process exists for flagging not-at-fault crashes, but it is neither automatic nor universally used. Treat crash counts accordingly.
- What is double brokering and why does it matter?
- Re-brokering a load without the authority or consent to do so. It obscures who is actually hauling and who is liable, which becomes acute when cargo is damaged or disappears.
- Is an inactive USDOT number the same as revoked authority?
- No. They are separate records with separate statuses and separate causes. Check both.
- Is this site affiliated with FMCSA?
- No. It is an independent educational reference, not endorsed by or connected to any government agency. See about this guide.
- Can I rely on this for a commercial decision?
- No. This is general educational material. Verify anything consequential against official FMCSA sources and take professional advice where appropriate. See terms of use.