 The essential mission of the ONT is then to promote and facilitate donation and transplantation of organs, tissues, and cells.It also guarantees the more appropriate and correct distribution, according to the technical knowledge and equity principles, keynotes of all transplantation activity.To carry out these tasks, it functions as a technical operative unit that adhering to the principles of cooperation, efficacy, and solidarity, fulfils its mission of coordinating the activities of donation, extraction, preservation, distribution, exchange, and transplantation of organs, tissues and cells throughout the whole Spanish Health Care System, itself distributed along the autonomous communities of Spain.