How many trucks do I count?
Two ways to answer, and they can give different numbers. Which one to use, and what a power unit actually is.
Checked over on
There are two accepted ways to answer, and they can legitimately give you different numbers. Either is fine; you just have to pick one and be able to say which.
The easy way
Use the power-unit count on your most recent MCS-150. It is already filed, it is already in the federal record, and for most carriers it is right.
The other way
Count the power units you actually operated during July 1, 2024 – June 30, 2025. This is the one to use if your fleet has changed since the MCS-150 went in — you sold three tractors in the spring, or you doubled in the autumn.
What is a power unit anyway
Anything self-propelled — trucks, tractors, buses. Trailers do not count, and neither does anything else you tow. Each truck counts once no matter how many trailers it pulled across the year.
Can the answer be zero?
It can, and it does not get you out of registering. Brokers, forwarders and leasing companies with no vehicles pay the lowest bracket and still register. The one case where zero is not allowed is a business that registered its USDOT number after the measuring period had already ended — there was no period in which to have run nothing.
Start with your USDOT number and we’ll fill in the rest from the federal register.
File UCR 2026 — from $96.00While you’re here
Is UCR the same as a BOC-3? — No, and mixing them up is the most common mistake we see. Here is the difference in one page.
When is UCR due? — It opens in October, it is due by the end of December, and nobody sends you a reminder. Here are the dates.
What happens after you order — A receipt from us is not a receipt from the government. Here is what each one means and when you get it.
Fifty State Agent is a private filing service, not affiliated with the FMCSA, the UCR Plan or any government agency.