This document is the most recent revision of the document originally entitled "Education and Training Guidelines: A Taxonomy for Education and Training in Professional Psychology Health Service Specialties," first approved by the American Psychological Association (APA) Council of Representatives in February 2012. The purpose of this document is to provide a consistent set of terms and definitions related to education and training in health service psychology specialties and subspecialties recognized by the APA. The "Guidelines" also provide a structure for the use of these terms within the education and training sequences for each of these approved specialties and subspecialties. The overarching goal of the "Guidelines" is to facilitate clear and consistent communication in the use of terminology for training programs, students, professional organizations, and members of the public. The "Guidelines" address the type and intensity of specialized training opportunities offered by individual education and training programs at the doctoral, doctoral internship, postdoctoral, and postlicensure stages of education and training. [These guidelines were prepared by the American Psychological Association's Commission for the Recognition of Specialties and Subspecialties in Professional Psychology (CRSSPP).]