Defense Primer: Planning, Programming, Budgeting, and Execution (PPBE) Process [Updated December 22, 2021] [open pdf - 574KB]
From the Introduction: "Planning, Programming, Budgeting, and Execution (PPBE) is the Department of Defense (DOD) process for allocating resources among the armed services, defense agencies, and other components. The annual process serves as the framework for DOD civilian and military leaders to decide which programs and force management requirements to fund based on strategic objectives. This product describes a notional PPBE process from the perspective of the Office of the Secretary of Defense (OSD). In practice, aspects of the process may differ based on current events or leadership preferences. DOD Directive 7045.14 states that PPBE serves as the annual resource allocation process for the department over a multi-year planning cycle. According to the directive, the objective of the process is 'to provide the DOD with the most effective mix of forces, equipment, manpower, and support attainable within fiscal constraints.' Chairman of the Joint Chiefs of Staff Instruction 3100.01E describes the process as the Secretary of Defense's 'institutional strategic planning system and the primary decision-making process for translating strategic guidance into resource allocation decisions.' The process is designed to produce DOD's portion of the President's annual budget request to Congress, as well as updates to the department's five-year spending plan known as the Future Years Defense Program (FYDP)."
CRS In Focus, IF10429
Congressional Research Service: https://crsreports.congress.gov/