This comprehensive and authoritative volume will serve as a complete introduction to those new to the field, as well as an up-to-date desk reference on regulations and resources for experienced practitioners. The handbook will provide a forum building a network of consistent approaches, practices, and results. Covering both NRC and DOE approaches, this book applies not only to decommissioning existing nuclear facilities, but by crossing the traditional lines between operations and reuse, this will also allow us to rethink the construction of new ones. The expert team of authors provides valuable lessons from their collective experiences in nuclear decommissioning. They represent areas pertaining to policy, engineering, and science. The handbook focuses primarily on time-tested and proven technologies.