U.S. and foreign competition authorities may cooperate in investigating cross-border conduct that has an impact on U.S. consumers. For more information on the application of U.S. antitrust laws to businesses with international operations, consult the Antitrust Guidelines For International Enforcement and Cooperation. In addition, as more U.S. companies and consumers do business overseas, federal antitrust work often involves cooperating with international authorities around the world to promote sound competition policy approaches. There are now more than 130 foreign competition agencies. For more information on the agency’s work with these authorities, visit the Office of International Affairs web pages.