MIL-STD-1530B, DEPARTMENT OF DEFENSE STANDARD PRACTICE: AIRCRAFT STRUCTURAL INTEGRITY PROGRAM (ASIP) (20 FEB 2004) [SUPERSEDING MIL-STD-1530A & MIL-HDBK-1530B]., This standard describes the USAF Aircraft Structural Integrity Program (ASIP) and defines the requirements necessary to achieve structural integrity in USAF air vehicles while the cost of ownership is minimized; and cost and schedule risks managed through a series of disciplined, time-phased tasks. This standard details programmatic tasks for the conceptual definition, development, acquisition, maintenance, and modification of the primary and secondary structures of crewed and unmanned flight vehicles and external stores, to ensure their structural integrity while affordability of these Air Force systems is maintained throughout their period of use.