This article reviews 2 models of skill acquisition, 1 from nursing and the other from aviation, and compares them to the Association for Professionals in Infection Control and Epidemiology Competency Model for the Infection Preventionist (IP). The authors explore the mental activity associated with competence and provide usable examples for IPs to further assess their own competence, and competence of IPs in their charge. This was done for the purpose of advancing and expanding upon the career stages within the field of infection prevention. Further, we suggest a mechanism for expansion of the current Association for Professionals in Infection Control and Epidemiology Competency Model for the IP, as well as explore career stages and the evolution of professional practice self-assessment and recertification. The authors believe an expansion would better match the needs of current and future IPs in terms of career development and competency.