The United States Power Squadrons (USPS) is a non-profit educational organization, founded in 1914, whose mission is to improve maritime safety and enjoyability through classes in seamanship, navigation, and other related subjects. The USPS comprises approximately 45,000 members organized into 450 squadrons across the United States and in some US territories. It is the largest U.S. non-profit boating organization and has been honored by three U.S. presidents for its civic contributions. Its official publication is The Ensign magazine.