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Protecting America's Future — The Y-12 National Security Complex stands ready to address the existing and emerging national security challenges facing our nation and our world today.

National Environmental Policy Act

National Environmental Policy Act

The National Environmental Policy Act (NEPA) of 1969 requires all federal agencies to consider the environmental impacts of their proposed actions and the reasonable alternatives for implementing those actions during the decision making process. The Y-12 National Security Complex follows the Council on Environmental Quality regulations (40 CFR 1500-1508) and the Department of Energy’s Implementing Procedures (10 CFR 1021).

There are three types of NEPA documents, an Environmental Impact Statement (EIS), and Environmental Assessment (EA), and a Categorical Exclusion (CX) Determination. Categorical exclusions are classes of DOE actions that DOE has, by regulation, determined do not individually or cumulatively have a significant effect on the environment and for which, therefore, neither an EIS nor an EA is normally required.

In accordance with DOE’s transparency and openness policy, Y-12 National Security Complex posts on this page documentation of CX determinations involving classes of actions listed in Appendix B to Subpart D of DOE’s Implementing Procedures, 10 CFR Part 1021.

For further information, please contact the Y-12 Site Office NEPA Compliance Officer, Pamela Gorman, 865.576.9903.

To view the CX determination form for a particular Y-12 project, select the year and click the date to the left of the project title.

2012 CX Determinations

2011 CX Determinations

2010 CX Determinations

Related Links

  • DOE NEPA website
  • EIS-0387, Record of Decision for the Continued Operation of the Y-12 National Security Complex
  • DOE/EIS-0387, Final Site-Wide Environmental Impact Statement for the Y-12 National Security Complex