The objective of this review was to determine the extent to which the USCG Is maintaining Its historical level of effort on non-homeland security missions. To address our objective, we reviewed the resource hours the USCG used to perform its various missions. We also reviewed the USCG's performance measures and results for each non-homeland security and homeland security mission. We did not verify the accuracy of the USCG-provided data. According to the USCG's data, the gap between resource hours for homeland security versus non-homeland security missions has narrowed from approximately 14 percent in fiscal year 2007 to approximately 4 percent in fiscal year 2012 (52 percent of resource hours for homeland security missions versus 48 percent for non-homeland security missions).