total ownership cost

TOC includes the elements of a program's Life Cycle Cost (LCC), as well as other related infrastructure or business process costs not necessarily attributed to the program in the context of the defense acquisition system. Infrastructure is used here in the broadest possible sense and consists of all military department and defense agency activities that sustain the military forces assigned to the combatant and component commanders. Major categories of infrastructure are support to equipment (acquisition and central logistics activities), support to military personnel (non-unit central "school-house" training), personnel administration and benefits, and medical care), and support to military bases (installations and communications/information infrastructure).