The Canada-United States Joint Contingency Plan sits ready to be signed by the commandant of the U.S. Coast Guard and commissioner of the Canadian Coast Guard in Grand Haven, Michigan, Aug. 3, 2017. The contingency plan outlines a coordinated system for responding to harmful substance incidents in the contiguous waters along the shared maritime borders of the U.S. and Canada. U.S. Coast Guard photo by Petty Officer 1st Class Patrick Kelley.