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product support

Defined in 2 places of the United States Code.

Product support.—The term "product support" means the package of support functions required to field and maintain the readiness and operational capability of covered systems, subsystems, and components, including all functions related to covered system readiness.

Same definition in 2 sections

Product support.—The term “product support” means the package of support functions required to field and maintain the readiness and operational capability of major weapon systems, subsystems, and components, including all functions related to weapon system readiness.

Source

The term “product support” means the package of support functions required to field and sustain the readiness and operational capability of covered systems (including subsystems and components of such covered systems).

Source