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Types of Environmental and Planning Documents

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Environmental Impact Statement (EIS) - An EIS evaluates actions that are likely to have significant environmental impacts. It analyzes a range of reasonable alternatives to accomplish the purpose and need for Federal action.  A draft EIS is released to the public for comment followed by a final EIS and then a Record of Decision.

Environmental Assessment (EA) – An EA is typically a shorter document than an EIS.  An EA’s analysis of expected environmental impacts is used to determine if there may be significant impacts which would require the preparation of an EIS and to facilitate reasoned decision making.  If the analysis in the EA shows no significant impact, a Finding of No Significant Impact is made by the manager.  In addition to the proposed action and the no action alternatives, EAs may include additional action alternatives.

Categorical Exclusion (CX) - The Department of the Interior and BLM maintain lists of actions that are categorically excluded from analysis under an EA or EIS. These are generally routine actions with minor impacts.

Determination of NEPA Adequacy (DNA) - Existing environmental documentation can and should be used whenever possible. If existing EAs or EISs fully encompass a proposed action, then no further review is needed. This finding is documented by a Determination of NEPA Adequacy (DNA).

Resource Management Plan (RMP) - An RMP is a land use plan that identifies resource condition goals and objectives; allowable resource uses; areas for limited, restricted, or exclusive use; areas meriting special designations; and management practices and actions to achieve goals and objectives.


NHPA Definitions.

EXM = Exempt activity as defined in in 2014 State Protocol Agreement Among the California State Director of the Bureau of Land Management and the California State Historic Preservation Officer and the Nevada State Historic Preservation Officer regarding the manner in which the Bureau of Land Management will meet its responsibilities under the National Historic Preservation Act and the National Programmatic Agreement among the BLM, the Advisory Council on Historic Preservation, and the National Conference of State Historic Preservation Officers.
REV = The proposed undertaking is in review and no preliminary determination has been made.
NHA = Preliminary determination that the proposed activity will result in no historic properties affected.
NAE = Preliminary determination that the proposed activity will result in no adverse effect to historic properties.
ADV = Preliminary determination that the proposed activity will result in an adverse effect to historic properties.
AGM = The BLM plans to comply with Section 106 of the National Historic Preservation Act through the development and execution of an Agreement Document in the form of a Memorandum of Agreement (MOA) or a Programmatic Agreement (PA).
CMP = Responsibilities under the National Historic Preservation Act for the proposed activity have been met through procedures specified in the 2014 State Protocol Agreement, 36 CFR 800 regulations, or alternate means, such as an agreement document.

Last updated: 04-10-2014