The FMCSA issues identification numbers that serve as the main identifiers for your carrier. Knowing which ones you need—and when to apply—is critical to avoiding unnecessary costs.
USDOT Number
Required for all companies operating commercial vehicles in interstate commerce.
MC Number
Also known as "Operating Authority," this is required for for-hire carriers moving regulated freight.
Timing Your Application
We typically recommend applying for your MC number when you are 30-60 days away from having your equipment ready. This accounts for the mandatory 21-day protest period and ensures you don't waste time on your 90-day window to secure insurance and process agents.