(a) This part implements the National Environmental Policy Act of 1969 (NEPA), setting forth the Army's policies and responsibilities for the early integration of environmental considerations into planning and decision-making.

(b) This part requires environmental analysis of Army actions affecting human health and the environment; providing criteria and guidance on actions normally requiring Environmental Assessments (EAs) or Environmental Impact Statements (EISs), and listing Army actions that are categorically excluded from such requirements, provided specific criteria are met.

(c) This part supplements the regulations of the Council on Environmental Quality (CEQ) in the Code of Federal Regulations (CFR) (40 CFR parts 1500-1508) for Army actions, and must be read in conjunction with them.

(d) All Army acquisition programs must use this part in conjunction with Department of Defense (DOD) 5000.2-R (Mandatory Procedures for Major Defense Acquisition Programs and Major Automated Information Systems).

(e) This part applies to actions of the Active Army and Army Reserve, to functions of the Army National Guard (ARNG) involving federal funding, and to functions for which the Army is the DOD executive agent. It does not apply to Civil Works functions of the US Army Corps of Engineers (USACE) or to combat or combat-related activities in a combat or hostile fire zone. Operations Other Than War (OOTW) or Stability and Support Operations (SASO) are subject to the provisions of this part as specified in subpart H of this part. This part applies to relevant actions within the United States, which is defined as all States; the District of Columbia; territories and possessions of the United States; and all waters and airspace subject to the territorial jurisdiction of the United States. The territories and possessions of the United States include the Virgin Islands, American Samoa, Wake Island, Midway Island, Guam, Palmyra Island, Johnston Atoll, Navassa Island, and Kingman Reef. This regulation also applies to actions in the Commonwealths of Puerto Rico and the Northern Marianas, the Republic of the Marshall Islands, and the Federated States of Micronesia and Palau (Republic of Belau). In addition, this part addresses the responsibility of the Army for the assessment and consideration of environmental effects for peacetime SASO operations worldwide. Throughout this part, emphasis is placed upon quality analysis of environmental effects, not the production of documents. Documentation is necessary to present and staff results of the analyses, but the objective of NEPA and Army NEPA policy is quality analysis in support of the Army decision maker. The term “analysis” also includes any required documentation to support the analysis, coordinate NEPA requirements, and inform the public and the decision maker.