This pamphlet, Department of the Army Pamphlet DA PAM 600-3 Commissioned Officer Professional Development and Career Management December 2014, serves primarily as a professional development guide for all officers. It does not prescribe the path of assignments or educational requirements that will guarantee success, but rather describes the full spectrum of developmental opportunities an officer can expect for a successful career. This document also serves as a mentoring tool for leaders at all levels and is an important personnel management guide for assignment officers, proponents, and Headquarters, Department of the Army (HQDA) selection board members. Its focus is the development and career management of all officers of the U.S. Army.