YMCA Youth and Government (YAG) is a nationwide program that allows middle and high school students to participate in model governments at the local, state, national, and international levels. It operates in all 50 U.S. states and Washington, DC. Students may also take part in national programs such as the Youth Conference on National Affairs (CONA), National Judicial Competition, Youth Governors Conference (YGC), Youth Advocate Program, and Changemakers Summit.