This handbook provides detailed guidance to facilitate a comprehensive evaluation of the adequacy of a program’s Integrated Product Support (IPS) planning, management, control, execution and resources. The handbook also provides assessment criteria to be used for ILAs conducted after the Full Rate Production (FRP) decision/Full Deployment Decision (FDD) and throughout sustainment. The methods and checklists in this handbook were designed to implement the requirements of SECNAVINST 5000.2 and SECNAVINST 4105.1, emphasizing the user as the ultimate customer of the acquisition process.