MCS-150
How to update your USDOT number information
By the DOT Compliance Partner team · June 15, 2026 · 3 min read
You update your USDOT information by filing an MCS-150 through the FMCSA Portal. You don't need to wait for your biennial due date — you can file an update any time your information changes. There is no fee to file.
When you should update immediately
- Your principal business address changes
- Your fleet size changes significantly (adding or removing vehicles)
- Your driver count changes significantly
- You change from for-hire to private operations or vice versa
- Your company name or legal structure changes
Why it matters
SAFER is a public record. Shippers and brokers see your FMCSA information when they look up your DOT number. Outdated information can raise questions during a roadside inspection or when a shipper's compliance check flags a discrepancy.
How to file
Log into the FMCSA Portal, select the MCS-150 option, update the fields that have changed, and submit. FMCSA will process the filing and update SAFER within a few business days.
This article is general orientation, not legal or regulatory advice. Confirm current requirements with FMCSA or a qualified advisor before relying on specific dates or dollar amounts.