The work of the United States Coast Guard today is managing six major operational mission programs including maritime law enforcement, maritime response, maritime prevention, marine transportation system management, maritime security operations, and defense operations. The main roles of the Coast Guard is to protect the public, the environment, and U.S. economic and security interests in any maritime region in which those interests may be at risk, including international waters and America's coasts, ports, and inland waterways. The Coast Guard operates as part of the Department of Homeland Security by enforcing the nation's laws at sea, protecting marine environment, guarding our country's coastlines and ports.
