How DOT Due Dates works

Where the data comes from

When you enter a USDOT number, we look it up in FMCSA's public datasets on data.transportation.gov (the motor carrier census file and related registration files). These are the same public records anyone can download. They can lag behind FMCSA's live system by days or weeks, so a brand-new or just-updated record may not show yet.

How the dates are calculated

Each guide links to the official source. If a rule changes, we update the calculation and the guide.

What we don't do

Reminders are a backup, not a guarantee. You're still responsible for meeting your deadlines, so please double-check with the agency.

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