Summary: The U.S. National Committee on Theoretical and Applied Mechanics (USNC/TAM) was established in 1949 to represent the interests of the United States in international scientific activities relating to the field of mechanics and to represent the National Academy of Sciences, which is the U.S. adhering body to the International Union of Theoretical and Applied Mechanics (IUTAM). The committee is the focal point for the U.S. engineering, scientific, and mathematical communities that have common interests in mechanics. The committee serves as the national forum for defining major issues in mechanics research, technology, and education, suggesting strategies in areas of mutual concern, and stimulating appropriate actions.