Training to train

Your State BON will have specific rules and regulations that you will have to follow to open a school. It will need to be approved. I would start there.
Pearson Vue will have info on the testing information.
One thing I did was teach at another program for a while to learn all about CNA programs.
When I went to my state's BON website I saw a list of all the CLOSED CNA schools...which made me wonder why so many had failed. I would really do my homework before I started a school. Good luck! I loved the students!