38 C.F.R. § 200.4
(a) Classification of AFRH actions.
(b) Categorical Exclusions (CATEX).
(1) A categorical exclusion (CATEX) is a category of actions which do not individually or cumulatively have a significant effect on the human environment, except under extraordinary circumstances (42 CFR 1508.4). Because they lack the potential for effect, they do not require detailed analysis or documentation under NEPA.
(i) Determining when to use a CATEX (screening criteria). To use a CATEX, the proponent must satisfy the following three screening conditions:
(ii) Extraordinary circumstances that preclude the use of a CATEX are:
(iii) If a proposed action would adversely affect “environmentally sensitive” resources, unless the impact has been resolved through another environmental process (e.g., CZMA, NHPA, CWA, etc.) a CATEX cannot be used. Environmentally sensitive resources include:
(2) AFRH recognizes two types of CATEX:
(c) Environmental Assessment (EA).
(2) The analysis required for an EA leads either to a Finding of No Significant Impact (FONSI) or a Notice of Intent (NOI) to prepare an Environmental Impact Statement. AFRH will prepare a FONSI in accordance with 40 CFR 1508.13, if the agency determines on the basis of the EA that there are no significant environmental effects and therefore, there is no need to prepare an Environmental Impact Statement. AFRH shall make the FONSI available to the affected public as specified in § 1506.6. Under certain limited circumstances, AFRH shall make the finding of no significant impact available for public review for 30 days before the agency makes its final determination whether to prepare an environmental impact statement and before the action may begin. The circumstances are:
(d) Environmental Impact Statement (EIS).
(f) Using NEPA in decision making.