Many states do not accept apprenticeship training to obtain a license to practice. Be sure to check with all states in which you hope to practice to confirm their requirements for licensure. You can find the information for the state regulatory boards by going to the State Licensure Requirements Interactive Map web page.
When you click on each state you will be redirected to the state's regulatory board's website. NOTE: This screenshot it subject to change at anytime and just for reference. Please go directly to this page to see the most up to date information.