In today's global environment, social studies educators have the opportunity to expand their students' vision of the role of citizenship in developing a democratic understanding by adopting multiple perspectives on citizenship. Global citizenship education is becoming an important component in citizenship education in many countries. However, unlike their colleagues in Europe or Asia, US teachers are still less enthusiastic about incorporating global citizenship perspectives into their instruction. This paper describes the obstacles that prevent social studies teachers from using global citizenship perspectives. It also explores whether state academic standards in social studies provide sufficient curricular guidance for global citizenship education.