While traditional cardiac and pulmonary rehabilitation programs focus on insurance reimbursement to recoup costs and deliver services, phase III maintenance programs have the potential to supplement and sustain department budgets while providing desirable health services. This session aims to describe how to implement and run a successful and self-sustainable phase III program. Topics covered include areas of income and the benefits of a self-pay service which is not subject to negotiated rates by insurance companies and organizational or facility fees. Furthermore, we will detail items of consideration regarding patient safety and satisfaction such as physician consultations, exercise tolerance tests, and staffing considerations as well as weekly, monthly and yearly patient checkups. As cardiac and pulmonary rehabilitation professionals are uniquely qualified to provide exercise prescriptions and risk factor management, we will discuss the importance of obtaining internal referrals and incorporating patients with diverse clinical backgrounds in order to grow and sustain a program (COPD, atrial and ventricular arrhythmias, cancer, diastolic heart failure, peripheral artery disease, behavioral weight loss programs, etc). Through the use of our own internal data, we will describe various strategies for recruitment and retention of phase III patients. Finally, we will address the impact of COVID-19 and the challenges of prioritizing and running phase II and phase III simultaneously.