This guidance from the Council on Environmental Quality provides methods for substantiating categorical exclusions, clarifies the process for establishing categorical exclusions, outlines how agencies should engage the public when establishing and usin...
Office of NEPA Policy and Compliance
December 6, 2010
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This guidance from the Council on Environmental Quality provides methods for substantiating categorical exclusions, clarifies the process for establishing categorical exclusions, outlines how agencies should engage the public when establishing and using categorical exclusions, describes how agencies can document the use of categorical exclusions, and recommends periodic agency review of existing categorical exclusions.
This guidance has since been replaced. For current guidance, see the April 9, 2026, CEQ Guidance on Establishing, Revising, Adopting, and Applying Categorical Exclusions Under NEPA.