Guides · Updated October 18, 2026
Is this MCS-150 or UCR letter a scam?
Often, yes. Filing the MCS-150 with FMCSA is free, and UCR is filed on ucr.gov. Letters or emails that pressure you to pay a third party, or ask for your FMCSA PIN or login, are a common scam. Go to the official site yourself instead of clicking links.
Warning signs
Urgent deadlines with threats of fines in an email or letter you didn't expect.
A request for your FMCSA PIN, Login.gov password, SSN or bank details.
A web address that isn't fmcsa.dot.gov, ucr.gov or your state's official site.
Fees for things that are free when filed directly.
What to do
Type the official address into your browser yourself: fmcsa.dot.gov for registration and ucr.gov for UCR.
Check your real deadlines with a free lookup so a fake 'past due' notice doesn't rush you.
Check your own deadlines free
Enter your USDOT number to see your MCS-150, UCR and IFTA dates.
Questions
Does FMCSA charge to file the MCS-150?
No. Filing the MCS-150 biennial update directly with FMCSA is free.
Does DOTWatch file forms for me?
No. DOTWatch reminds you of deadlines and watches your public record. You file free on the official sites, and DOTWatch never asks for your FMCSA PIN.
Sources
DOTWatch is not affiliated with FMCSA, USDOT, UCR or IFTA. This is general information, not legal or compliance advice. Always confirm with the official source.
More guides: When is my MCS-150 due? · When is the UCR registration deadline? · When are IFTA quarterly returns due? · How do I check if my insurance shows on my FMCSA record?