Compliance FAQ
What is UCR registration?
UCR is the Unified Carrier Registration - an annual interstate carrier fee under 49 CFR Part 367 and 49 USC §14504a. Carriers, brokers, freight forwarders, and leasing companies operating in interstate commerce all pay it. The fee scales by fleet size and is due by December 31 each year.
Why it matters
UCR replaced the old Single State Registration System (SSRS) in 2007. Instead of paying each transit state separately, you file once through your base state, and the proceeds are distributed to participating jurisdictions.
UCR is a separate filing from MCS-150 and BOC-3. Many new carriers conflate the three - the cleanest mental model is: BOC-3 is a one-time process-agent designation, MCS-150 is a biennial info update, UCR is an annual fee.