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§ 1501.5 Environmental assessments.
(a) An agency shall prepare an environmental assessment for a proposed action that is not likely to have significant effects or when the significance of the effects is unknown unless the agency finds that a categorical exclusion (§ 1501.4) is applicable or has decided to prepare an environmental impact statement.
(b) An agency may prepare an environmental assessment on any action in order to assist agency planning and decision making.