State licensure laws in speech-language pathology and audiology vary from state to state. Natural disaster displacements as well as trends in job mobility have increased the need for licensees to be able to have more fluidity in practicing from 1 state to another. Additionally, literature reviews on the history of professional licensure regulations raise questions as to the functionality of the approach taken in states. This study evaluated specific temporary and courtesy practice licensure patterns across all 50 states. Additionally, I discuss 35 years of literature that presents the 2 theories behind the use of mandatory licensure for professionals.