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NEPA - The Basics

NEPA - The Basics

The National Environmental Policy Act (NEPA) assures that federal agencies will consider the impact of an action on the human environment before decisions are made and the action is taken. It requires that NEPA documents concentrate on issues that are significant to the action in question. The NEPA process is intended to help public officials make better decisions based on an understanding of environmental consequences, and take actions that protect, restore, and enhance the human environment.

In accordance with the NEPA Process, the agency conducts an interdisciplinary review of the environmental effects of the proposal so that the relevant environmental information is available to citizens and public officials. The review of the environmental effects of a proposed action can take one of the following four forms:

These types of proposed activities do not individually or cumulatively have significant environmental effects and may be exempt from requirements to prepare an environmental analysis. These actions are not included in the online registers.

A Documentation of NEPA Adequacy (DNA) identifies previously prepared NEPA documents which adequately describe the environmental consequences of a newly proposed action. In most cases, a DNA is prepared without additional public involvement

An EA is prepared to determine if a proposed action or alternative will significantly affect the quality of the human environment. If the impacts are determined to be insignificant, a Finding of No Significant Impact (FONSI) is prepared and is made a part of the decision. If the impacts are determined to be significant, the proposed action may be rejected, modified, or an Environmental Impact Statement (EIS) may be prepared. Public involvement activities for an EA range from notifying those directly affected by the proposed action to providing review drafts for public comment and conducting workshops and meetings.

Major federal actions that may significantly affect the human environment require that an Environmental Impact Statement (EIS) be prepared. The EIS process includes a formal public involvement process.

All federal agencies encourage the public to get involved in the planning process to help determine how public lands will be managed. Involvement by everyone with an interest in public lands will help ensure the best possible plan is developed and future uses of public lands are well defined. You may participate in any of the on-going planning efforts listed a federal agency. If you have questions or would like to submit comments on a particular project, or if you wish to be on a plan mailing list, contact the appropriate agency office.

You can locate the local National Forest District or BLM Field Office from the web sites listed below.

U.S. Forest Service -

Bureau of Land Management -

Read more about NEPA, Endangered Species, and Critical Habitat on



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