This publication of Army Regulation AR 25-1 Army Information Technology is a major revision. It establishes policies and assigns responsibilities for information management and information technology. It applies to information technology contained in both business systems and national security systems (except as noted) developed for or purchased by the Department of Army. It addresses the management of information as an Army resource, the technology supporting information requirements, and the resources supporting information technology. This regulation implements 40 United States Code, Subtitle III; 44 United States Code, Chapters 35 and 36; 10 United States Code, Sections 2223 and 3014; and DODD 8000.01. It establishes the Army's Chief Information Officer. The full scope of the Chief Information Officer's responsibilities and management processes are delineated throughout this regulation. These management processes involve strategic planning, capital planning, business process analysis and improvement, assessment of proposed systems, information resource management (to include investment strategy), performance measurements, acquisition, and training. This regulation applies to the Active Army, the Army National Guard/Army National Guard of the United States, and the U.S. Army Reserve, unless otherwise stated. Portions of this regulation prescribe specific prohibitions that are punitive, and violations of these provisions may subject offenders to non-judicial or judicial action under the Uniform Code of Military Justice. During mobilization, procedures in this publication can be modified to support policy changes as necessary.