This book guides graduate faculty and supervisors in effective gatekeeping by bringing together the body of professional performance standards for multiple mental health fields and providing best practices, tools, and templates for use with trainees. Following an introduction to the professional, ethical, and legal issues involved in gatekeeping, the authors discuss contextual factors that can affect trainee functioning. Topics addressed include strategies for assisting low-performing trainees, faculty and supervisor roles, professional collaboration, evaluating trainee performance, designing remediation plans, documentation, and prevention and early intervention. Text features include "Notes From the Field," "On the Legal Side," and "What Would You Do?" to enhance understanding of the material.