This report discusses the Coast Guard, which is the lead federal agency for maritime homeland security. For FY2007, the Coast Guard is requesting a total of about $4.5 billion for missions defined in The Homeland Security Act of 2002 (P.L. 107-296) as the Coast Guard’s homeland security missions. This equates to about 54% of the Coast Guard’s total requested FY2007 budget. The Coast Guard’s homeland security operations pose several potential issues for Congress, including adequacy of Coast Guard resources for performing both homeland security and non-homeland security missions, and Coast Guard coordination with other agencies involved in maritime homeland security