The Bureau of Industry and Security (BIS) is a part of the U.S. Department of Commerce. It is responsible for regulating the export of sensitive goods and technologies to ensure national security and foreign policy interests. BIS works to prevent the proliferation of weapons and to promote U.S. economic interests. BIS also provides guidance and support to businesses regarding compliance with export regulations. It conducts investigations and enforces laws related to trade practices. Through its efforts, the bureau aims to balance economic growth with the protection of national security and international stability.