All participants in the Istanbul Summit meeting are invited to play a continuing role in the work of the DICG.

DICG membership is open to all those who have actively participated in previous DICG meetings and activities, who are committed to the principles outlined in the Declaration itself, and who wish to assist in the ongoing mission of the DICG, namely, "to promote, implement and uphold the Declaration of Istanbul so as to combat organ trafficking, transplant tourism and transplant commercialism and to encourage adoption of effective and ethical transplantation practices around the world."

New members join the DICG through a process which requires them to commit to the Declaration's principles in their own practice, and to support the mission of the DICG. Prospective members must be nominated by an existing member, provide a brief CV and a statement detailing their experience, expertise and interests of relevance to the DICG mission. Nominations should be sent to the DICG Executive for review.