If you want to become a truck broker and have your own truck brokerage company you have to apply with the Federal Motor Carrier Safety Administration (FMCSA). You might need to execute a surety bond for $10000 and file the BOC-3. The value of the surety bond varies with the type of bond you choose and the financial institution that provides you the program. You should know that the court papers would be served to the BOC-3 processing agent for any proceeding in the future.
The freight that is moved is on the rise and there is an ever increasing demand for such freight brokers. It is a multi billion dollar industry and you can very well try to get your share out of it if you do it properly. Applying with the FMCSA can be done through snail mail or online itself. There are institutions that conduct courses on freight brokerage. You can join such courses and learn how to do that business. Upon completion you can also become an agent with them and try what you have learnt in reality.