Non-disability mental conditions, such as personality disorders, can render a service member unsuitable for military service and can lead to an administrative separation. This book examines the extent to which the Department of Defense (DOD) and the military services are able to identify the number of enlisted service members separated for non-disability mental conditions, and the military services are complying with DOD requirements when separating enlisted service members for non-disability mental conditions, including personality disorders, and how DOD and the military services oversee such separations.