Evidence-based practices in psychiatric rehabilitation are complex combinations of treatments, services, and supports, which are provided in well-researched sequences with attention to an individual's needs and preferences. Because of their complexity, these interventions lose effectiveness when they are not delivered with fidelity to established models. No one in the field of psychiatric rehabilitation can talk for long about fidelity without referring to the work of Gary R. Bond, Ph.D., whose research for nearly four decades has emphasized the importance of rigorously assessing how care is delivered. When Bond retired after 34 years from Indiana University-Purdue University Indianapolis (IUPUI) in 2009, his colleagues held a conference to honor him. A special section in this month's issue—Festschrift: Gary Bond and Fidelity Assessment—presents a sample of current work in this area, some of which is from the conference and all of which has been influenced by Bond. In an introduction to the Festschrift, Michelle P. Salyers, Ph.D., who served as guest editor, gives an overview of the four articles (page 764). In the first article, Gregory B. Teague, Ph.D., and coauthors describe four recently developed fidelity measures as a way of illustrating advances in fidelity assessment and the range of current approaches (page 765). Faithful delivery of an evidence-based practice requires clinicians who are competent in the practice. The second study, by Alan B. McGuire, Ph.D., and colleagues, tested an instrument to measure clinician competence in delivering the illness management and recovery program (page 772). Engaging clients in shared decision making is a key clinical competence at the heart of effective practices. In the third study, Dr. Salyers and her colleagues examined a system for rating and coding elements of shared decision making observed during routine mental health visits (page 779). The difficulty of training frontline clinicians to deliver an evidence-based practice limits its dissemination. In the final article, Weili Lu, Ph.D., and colleagues describe how feedback from a standardized fidelity assessment measure used by supervisors and consultants to rate audio-recorded therapy sessions can enhance clinician training (page 785). In Taking Issue, Angela L. Rollins, Ph.D., acknowledges Dr. Bond as her mentor and describes new challenges in fidelity assessment to be addressed by his protégés and colleagues as they continue his work (page 731).