24/7(239) 526-873324/7

Can I correct my UCR fleet count after filing?

Yes. Most participating-state UCR portals accept correction filings if the original filing reported the wrong fleet count (and therefore the wrong tier). The carrier files a correction, pays any difference if the correct tier is higher, or requests a refund if the correct tier is lower. Corrections are typically processed within 1-3 business days.

UCR tier is based on the carrier's power-unit count (commercial motor vehicles for purposes of the §14504a definition). The tier brackets are: Tier 1 (0-2 vehicles), Tier 2 (3-5 vehicles), Tier 3 (6-20 vehicles), Tier 4 (21-100 vehicles), Tier 5 (101-1,000 vehicles), Tier 6 (1,001+ vehicles). The fee scales sharply across tiers — Tier 1 is approximately $46 while Tier 6 is approximately $44,000+ in 2025.

For carriers who reported the wrong fleet count at filing, the correction process is administrative. The carrier files a correction through the same participating-state portal, indicating the correct fleet count and the correct tier. If the correct tier is higher, the carrier pays the difference. If the correct tier is lower, the carrier requests a refund of the overpayment.

For carriers caught in audit-trigger situations (FMCSA or state DOT scrutiny of fleet count vs reported tier), corrections are still acceptable but may carry additional scrutiny. Carriers should document the basis for the corrected count (vehicle registration records, IRP fleet schedules, leasing-on records) so the correction can be defended if questioned.

For carriers with growing fleets that crossed a tier boundary mid-year, the correction is particularly important. A carrier that started the year at 18 power units (Tier 3) and grew to 22 power units mid-year (Tier 4) should file a tier correction reflecting the current count. Operating without the correction exposes the carrier to UCR non-compliance citations even though some UCR fee was paid.

Related guides