US flag signifying that this is a United States Federal Government website   Official website of the Department of Homeland Security

Homeland Security

Nuclear Reactors, Materials, and Waste Sector

Nuclear Reactors, Materials, and Waste Sector

Nuclear power accounts for approximately 20 percent of our nation's electrical generation, provided by 99 commercial nuclear plants.

Sector Overview 

The sector includes:

  • Nuclear power plants.
  • Non-power nuclear reactors used for research, testing, and training.
  • Manufacturers of nuclear reactors or components.
  • Radioactive materials used primarily in medical, industrial, and academic settings.
  • Nuclear fuel cycle facilities.
  • Decommissioned nuclear power reactors.
  • Transportation, storage, and disposal of nuclear and radioactive waste.

The sector is interdependent with other critical infrastructure sectors:

Sector-Specific Plan

The Nuclear Reactors, Materials, and Waste Sector-Specific Plan details how the National Infrastructure Protection Plan risk management framework is implemented within the context of the unique characteristics and risk landscape of the sector. Each Sector-Specific Agency develops a sector-specific plan through a coordinated effort involving its public and private sector partners. The Department of Homeland Security is designated as the Sector-Specific Agency for the Nuclear Reactors, Materials, and Waste Sector.

Sector Resources

Sector Training

Contact Information

For additional information, please contact the Nuclear Sector-Specific Agency at

Last Published Date: February 12, 2016

Was this page helpful?

Back to Top