From: Sean Sullivan Date: January 19, 2018 at 2:06:14 PM EST To: All DNFSB Users Subject: Announcement from the Chairman All, I have decided to leave the Board to pursue other interests. After much reflection, I have concluded that the outstanding staff here should have new leadership. Vice Chairman Bruce Hamilton will serve as Chairman; he has the skills and experience to provide that leadership. I expect the President and the Congress to continue this agency’s mission of providing independent oversight of the Department of Energy’s defense nuclear complex. I respect that judgment, and have no doubt that each of you will continue to execute that mission with the highest standards of professionalism, dedication, and technical competence. Our fine staff deserves to be led by an executive the staff believes in, and Mr. Hamilton will be that executive. This is effectively my two-week notice. My last official day of service will be February 2, 2018. I have thoroughly enjoyed the experience of leading this outstanding staff. All the best, Sean Sullivan Chairman