The Next Generation Nuclear Plant was a program to design and build an advanced reactor in the US. After looking through various designs, the High Temperature Gas-Cooled Reactor was selected for it's increased safety, minimization of proliferation risks, ability to address environmental challenges, and it is "the most likely to be deployed and commercialized in the near term".
The Energy Policy Act of 2005 mandates that an advanced reactor prototype be built, but in 2011 the Department of Energy told Congress it would not proceed with building a prototype at the current time. The Government Accountability Office Criticized this approach and the lack of progress in the report linked below.
We petition to finish designing and build an advanced reactor.