Categorical exclusions are categories of actions that DOE has determined normally do not have a significant effect on the human environment and for which, therefore, neither an environmental assessment nor an environmental impact statement normally is required. DOE's categorical exclusions are listed in Appendix B of its NEPA regulations, 10 CFR Part 1021 and in Appendix B of its DOE NEPA Implementing Procedures.
DOE has updated its categorical exclusions three times since online posting began in late 2009. More information on past DOE rulemakings is available here: DOE NEPA Program History.
Not all categorical exclusion determinations contain the full text of the relevant categorical exclusions. To find the full text, refer to the DOE NEPA regulations that were in effect at the time the categorical exclusion determination was signed.
For information on two other methods for DOE to make a CX determination, including Section 109 of NEPA and adopting another agency's CX determination, see NEPA Documents.
If you have any trouble finding a specific document, please contact AskNEPA@hq.doe.gov for assistance.