Thank you for the clarification. Here the MD is required to practice on any level. I've had them for 8 y/o volleyball and on up to collegiate sports. I can say for certain that the way it works in Texas is you attend a program of Kinesiology, Sports Medicine, Athletic Training, or anything along those lines, and can then take the licensure test (LAT) to practice in the state. The national certification, ATC, can only be tested for after attending an AT program that is CAATE accredited (same thing with Paramedic programs and NRP, just different accrediting bodies). In Texas and most states you have to have the licensure (LAT) in order to practice. It is ATC that allows reciprocity, in addition to working outside of state borders (ie, working with college or pro sports requires an LAT and ATC). That said, some states use the ATC as their license as well.