In 1982, the U.S government passed the Nuclear Waste Policy Act that requires the deep geologic repositories for nuclear waste. In 1983, Yucca Mountain was named as a potential site for a nuclear waste repository. In 1996, Yucca Mountain is found to be lacking the natural geological and hydrological qualities that are needed to be the crucial first barrier of the waste. This requires the project to start relying on engineered barriers. In 2001 several environmental organizations and state of Nevada, filed lawsuits against the U.S. Environmental Protection Agency (EPA). Nevada also filed lawsuits against the U.S. government, the Department of Energy and the U.S. Nuclear Regulatory Commission (NRC), challenging the Yucca Mountain project. In August of 2013, a federal appeals court ruled to resume the licensing process for a nuclear waste storage facility on Yucca Mountain.