document includes any of the following, as prepared under NEPA: (A) An environmental assessment. (B) A finding of no significant impact. (C) An environmental impact statement. (D) A record of decision. (6) Environmental impact statement The term environmental impact statement means the detailed statement of environmental impacts of a project required to be prepared under NEPA. (7) Environmental review process The term environmental review process means the process for preparing an environmental impact statement, environmental assessment, categorical exclusion, or other document required to be prepared to achieve compliance with NEPA, including pre-application consultation and scoping processes. (8) Indian tribe The term Indian Tribe has the meaning given the term in section 102 of the Federally Recognized Indian Tribe List Act of 1994 ( 25 U.S.C. 5130 ). (9) Lead agency The term lead agency , with respect to a project, means— (A) the Federal agency preparing, or assuming primary responsibility for, the authorization or review of the project