Environmental assessment (EA).
Environmental assessment (EA). A public document that provides sufficient evidence and analysis for determining whether to prepare an EIS or a finding of no significant impact, aids an agency's compliance with the National Environmental Policy Act (NEPA) when no EIS is necessary, and facilitates preparation of a statement when one is necessary (40 CFR 1508.9; FSH 1909.15, Chapter 40).
36 CFR § 219.62
Definitions of the special terms used in this subpart are set out as follows.