Created by the Unified Carrier Registration Act of 2005, this annual registration is for registering and collecting fees operators of commercial motor vehicles in interstate or international commerce. Brokers and freight forwarders as well as leasing companies are also required to register and pay annual fees. Fees collected are distributed to member states for use in DOT safety programs. Failure to pay annual UCR fees can lead to fines and penalties. Annual fees are determined by the number of vehicles. Brokers and freight forwarders pay just a single fee.