Christopher Steven Marcum, Ph.D., F.G.S.A, (he/him/they/them) is the Assistant Director for Open Science and Data Policy in the White House Office of Science and Technology Policy (OSTP). Before joining OSTP, he served as one of three NIH representatives to the President’s Scientific Integrity Fast Track Action Committee (Task Force) where he co-chaired the working group on Training and Transparency. He now co-chairs the Task Force in his OSTP capacity. In addition to scientific integrity, his portfolio includes priorities that aim to make Federal open science more accessible and equitable for all Americans. Dr. Marcum received his Ph.D. in sociology from the University of California, Irvine in 2011. After a post-doctoral fellowship in economics and statistics at the RAND Corporation, he joined the intramural research faculty of the National Human Genome Research Institute as a staff scientist where his research focused on social networks and health. His professional accolades include over fifty scientific publications, a commendation of exceptional service from OSTP, a Matilda White Rile Early Stage Investigator Honor from the Office of Behavioral and Social Science Research at the NIH, two GREAT Awards from the NHGRI, and an Order of Merit Award from the University of California-Irvine. He is a fellow of the Gerontological Society of America, nominated by his peers for his research, training, and advocacy on issues related to aging and the life course.