CDP has led an NCI collaboration with the European Organization for Research and Treatment of Cancer (EORTC) to convene a series of NCI/EORTC meetings on molecular diagnostics. At the first meeting, held in Denmark in 2000, four international working groups were established. One of the working groups focused on development of guidelines for information that should be included in all publications about tumor markers. The REporting Recommendations for Tumor MARKer Prognostic Studies (REMARK) were published in several major scientific journals in 2005 and 2006. The American Society of Clinical Oncology (ASCO) has now joined the collaboration. With ASCO’s involvement, the “Molecular Markers in Cancer” meeting, sponsored since November 2007 by EORTC, NCI, and ASCO, is being held annually. The meetings alternate between sites in U.S. and Europe. A tutorial for young oncologists and scientists involved in biomarker research occurs each year in conjunction with the meeting. The 2011 meeting took place in Brussels, Belgium and drew close to 400 participants. The 2012 meeting will take place in Hollywood, FL.