sentences:  Logistics Support Analysis was codified into a military standard in 1973 with the publication of Military Standard 1388-1.Logistic Support Analysis (LSA) guidelines and requirements were established by Department of Defense (DOD) Instruction 5000.2, Major System Acquisition Procedures, and DOD Directive 5000.39, Acquisition and Management of Integrated Logistic Support for Systems and Equipment, to create a single, uniform approach by the Military Services to improve supportability of military weapon systems through a disciplined approach to defining the required operational support other Integrated Logistic Support (ILS) objectives during the acquisition development phase.1388-1A was updated in 1983 and 1991 before being downgraded from a standard to a best practice on 26 November 1996.