The Yucca Mountain files series (1987-2008) documents Nevada Congresswoman Shelley Berkley's efforts to preventing nuclear waste from being stored in Nevada. Material includes correspondence and court documents involving the Department of Energy (DOE), impact reports, congressional hearings, transportation issues, and constituent concerns.

The correspondence and newspaper clippings series (1999-2012) contains letters directed to and from the United States Congress and Congresswoman Shelley Berkley, as well as newspaper clippings. The most prevalent subjects of the correspondence are agriculture, education, foreign affairs, health care, veterans and women's issues. Also included in the series is a group of campaign related mass mailers.