Résumé : With the coming into force of the Quebec Act respecting end-of-life care in 2015, nearly 30 Interdisciplinary Support Groups (ISGs) were formed to accompany practitioners and managers in the clinical, administrative, legal, and ethical practice of Medical Assistance in Dying (MAiD). Today, significant variability is observed in the constitution, role and functioning of ISGs. Based on an overview of national and international support structures, we highlight the strengths and challenges of ISGs. This article presents the results of the first phase of research conducted with 245 people involved in the practice of MAiD in Quebec. The objective is to survey current ISG practices in order to contrast them with those of equivalent structures in Canada and around the world. The intention is to guide managers in the development of support structures for their institutions. In summary, ISGs are distinguished by their interdisciplinary constitution, their decentralized nature, and their proximity to the teams in the field. However, their service offer remains largely unknown to caregivers and the general population. This can be explained by the undefined and unlimited nature of their mandate, but also by the gap between the scope of their mandate and the lack of funding they receive.