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The CarrierVault Blog

Practical guidance on DOT compliance, IFTA filing, CSA scores, and running a trucking fleet without the chaos.

Compliance

What Is UCR, and Do I Actually Have to Pay It?

UCR is a separate annual registration from your DOT number, MCS-150 and IRP. Who has to pay, how the vehicle count works, what it costs, and how to spot the scam letters.

Sep 21, 2026 · 5 min read

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