Interstate agencies enable states to work together for common purposes. Often, these agencies are created from interstate compacts approved by the U.S. Congress. The authority for interstate compacts is found in the U.S. Constitution (Article I, sec. 10).
Fishermen on Potomac River near Point of Rocks Bridge, Point of Rocks, Maryland, October 2003.
Photo by Diane F. Evartt. Maryland belongs to two interstate commissions concerned with the Potomac River.