Daily discovery
Daily checks compare stored snapshots, registration dates and new authority grants. A persistent USDOT ledger publishes each newly discovered carrier once, including first-seen date and event labels. Late filings can appear after their registration date. Reactivation and authority grants are distinct from new registrations.
Freshness
The website shows both FMCSA data date and publication time. A source may not change daily. A failed refresh leaves the last complete publication available. MCS-150 dates and filing-age columns let you judge each record’s age.