Department of Energy - Sub-Departments
The Department of Energy is responsible for the security of America's energy and nuclear power. They seek to make energy reliable, clean and affordable, and make possible the clean up of nuclear material. While ultimately doing what is best for the environment, science and technology are used and researched to complete the aims of this department. 
This page contains a list of sub-departments that are a part of the Department of Energy. This is an active list that is open to change, and it is meant to be a convenient public reference, not an official list. All the sub-departments listed below are referenced from this department's government website , where an official list may be accessed.
Office of Civilian Radioactive Waste Management
Office of Electricity Delivery and Energy Reliability
Office of Energy Efficiency & Renewable Energy
Office of Environmental Management
Office of Fossil Energy
Office of Legacy Management
Office of Nuclear Energy
Office of Science
- 'Program Offices'. U.S. Department of Energy. 06-07-2010. <http://www.energy.gov/organization/program_offices.htm>.