Environmental Impact Statement (EIS): An EIS is prepared when a proposed action or alternatives have the potential for significant effect on the human environment.
Environmental Assessment (EA): An EA is prepared to determine whether the impact of a proposed action or alternatives could be significant.
Record of Decision (ROD): The document that is prepared to substantiate a decision based on an EIS. It includes a statement of the decision made, a detailed discussion of decision rationale, and the reasons for not adopting all mitigation measures analyzed, if applicable.
Finding of No Significant Impact (FONSI): A determination based on an EA and other factors in the public planning record for a proposal that, if implemented, would have no significant impact on the human environment.
Scoping: The procedure by which an agency identifies important issues and determines the extent of analysis necessary for an informed decision on a proposed action. Scoping, an integral part of environmental analysis, includes early involvement of interested and affected public, as well as internal and external agency contacts.