In this special issue, Conoley et al. (2020) repeat the call for a paradigm shift in school psychology graduate education from the individual level to the system level and from secondary and tertiary intervention to primary prevention and implementation science to optimize environments for children's overall health and success. This article describes how school psychology training, as organized by professional standards of practice and credentialing, has evolved to its current status as a recognized specialty of practice within psychology. A review of the history of the accreditation and approval of school psychology programs, as well as the current status of competencies within these standards and procedures are presented. In addition, school psychology as a distinct specialty; various certifications, credentials, and licensure; professional identities; and recent developments in technology, telehealth, and cross-state credentialing are examined. The article includes a summary of how competencies are reflected in the most recent revisions of American Psychological Association accreditation, National Association of School Psychologists approval standards, and credentialing organizations such as Association of State and Provincial Psychology Boards. Finally, we conclude with the assertion that development and adoption of these standards, competencies and professional recognition certifications, which are informed by the current zeitgeist in both health and education more broadly, might propel school psychology to fulfill the promise not yet achieved as outlined by Conoley and colleagues (2020).