Actually I am considering doing that even though it's not required where I live. It's required only in certain counties, such as Los Angeles County south of me. Here all you need is a business license, a contractor's license if you make repairs over $500, and a resellers license if you sell anything. But I would do whatever it takes to get a leg up, including taking the CPO course. I was just looking for any advice from those in the business. For instance, do I buy a route from someone or should I try to start one on my own? If I could find training without having to purchase customers that would be ideal, but I don't see how this is possible.