Chapter 11.1. joint Acquisition Management from the Defense Acquisition Guidebook states the following:
Acquisitions that contribute to joint capabilities may be managed as joint acquisition programs. A "joint acquisition" is any acquisition system, subsystem, component, or technology program with a strategy that includes funding by more than one DoD Component during any phase of a system's life cycle. DoD Instruction 5000.02 addresses DoD Component fiscal responsibilities associated with participation in programs under joint acquisition management.
Joint Electronic Library Website
