Purpose – This paper aims to focus on The Pillars of Peer Support initiative, an ongoing project to examine and develop the principles of peer support services. These services are differentiated from peer support and define the parameters of a certified workforce that promotes recovery and fosters wellbeing. This process is based upon the lived experience of the peer support specialist. Design/methodology/approach – A review of the literature indicates that a range of models and activities for peer support services have been developed, and established outcomes for these services are emerging. Since Medicaid has defined peer support services as reimbursable, the workforce has continued to expand. The Pillars of Peer Support initiative is designed to provide a standard set of principles to guide states in their work with Medicaid, and others in the development of this workforce. Findings – The results of three Pillars of Peer Support summits are presented. This includes the 25 Pillars that have been developed and their role and use in state funded and other services. Additional findings support the process through which states and others can build these resources. A statement of how Peer Support Services fit within an essential health benefits package is also included. Originality/value – The workforce of certified peer specialists is rapidly expanding. Their role in providing peer support services is identified, and principles to guide their professional roles are presented. This will help guide the field in the development and deployment of this important component of the healthcare delivery system.