On March 8, 2006, Smart went to Congress to support Sexual Predator Legislation and the AMBER Alert system, and on July 26, 2006, she spoke after the signing of the Adam Walsh Act.
Smart attended Brigham Young University (BYU), studying music as a harp performance major. In May 2008, she traveled to Washington, D.C., where she helped present a book, You're Not Alone, published by the U.S. Department of Justice, which has entries written by her as well as four other recovered young adults.
In 2009, Smart commented on the kidnapping of Jaycee Lee Dugard, stressing that dwelling upon the past is unproductive. On October 27, 2009 Elizabeth spoke at the 2009 Women's Conference in California hosted by Maria Shriver, on overcoming obstacles in life.
On November 11, 2009, Smart left to go on her Mormon misson in Paris.
Smart returned temporarily from her mission in November of 2010 to serve as the chief witness in the federal trial of Brian David Mitchell. After the end of the trial she returned to France to finish her mission. She finished her mission and returned to Utah in the spring of 2011.
Smart has been studying music at BYU. She is considering applying to law school.
Smart was one of four women awarded the Diane-von Furstenberg Award in March 2011. The award included a $50,000 prize which Elizabeth Smart will use to start a foundation aimed at helping young people avoid or recover from violent events.
On July 7, 2011 it was announced that she would be a commentator for ABC News, mainly focusing on missing persons.