Abstract - ADMINISTRATIVE CORE The Gene Expression Database for Mouse Development (GXD) program will be managed by the seasoned leadership team that has successfully led it for over two decades (Martin Ringwald, PI; Joel E. Richardson, co- Investigator) and by Dr. Richard Balderelli, a highly qualified new co-Investigator who has worked closely with Drs. Richardson and Ringwald for many years. We will manage the goals and set the priorities of the GXD program on an ongoing basis. We will responsibly organize and assign the work of the GXD staff and regularly review outcomes and priorities. We will hold joint annual meetings of our external and internal Scientific Advisory Boards to review accomplishments, discuss barriers, evaluate all aspects of the GXD program, and garner input on our proposed work for the coming year as well as longer term goals.