This specification is intended to be cited in a procurement in which the Government acquires IETMs. This specification describes the general requirements the author must follow concerning the creation and selection of general content, style, format and user interaction features of the IETM. However, this specification is intended to be implemented in combination with the specific style guides and detailed requirements specifications of individual end item IETMs, e.g., an IETM for a specific functional area or a specific weapon system. These documents in turn reference this specification for the general IETM requirements which are common to the differing functional end item IETMs. This specification is not a complete end item specification in itself. Specific requirements for the type of IETM under development are found in the associated performance specification identified in the contract Statement of Work (SOW) for the corresponding conventional technical manual functionality. This specification applies to all levels of maintenance.