This regulation, Army Regulation AR 750-10 Army Modification Program, implements Army policy on modifications to Army equipment and is based on Department of Defense (DOD) 5000-series and 7000-series publications. Modification is any alteration, conversion, or modernization of an end item or a component of end item (COEI), which in any way changes or improves the original purpose or operational capacity in relation to effectiveness, efficiency, reliability, or safety of that item. This includes, but is not limited to: conversions; field fixes; retrofits; rebuilds; redesigns; upgrades; extended service programs; engineering changes; software revisions; system enhancement programs; service life extension programs; system improvement programs; product improvement programs; preplanned product improvements; modifications developed and applied by contractors as part of prime vendor support or contractor logistics support (CLS) agreements; horizontal technology integration; continuous technology refreshments (CTRs); technology insertions; and all other terms used to describe modifications as defined above. Modifications that improve or diminish end item performance against approved key performance parameters (KPPs) and/or key system attributes (KSAs) to levels above or below objective performance envelope require an updated functional requirements document be submitted to the Deputy Chief of Staff, G-3/5/7 (DCS, G-3/5/7) for Army Requirements Oversight Council approval. Modifications that will not exceed the performance envelope defined by the approved KPP and/or KSA do not require DCS, G-3/5/7 or Army Requirements Oversight Council approval. Hardware and Software modifications: Table 1-1 and table 1-2 outline requirements for hardware and software modifications as equipment moves through different phases of the production cycle. This regulation provides a disciplined approach on how to plan, authorize, implement, track, and control hardware and software modifications made to Army materiel and Army-managed materiel used by other Services.