Adm. Karl L. Schultz, the commandant of the Coast Guard, and The honorable Robert Sumwalt, the National Transportation Safety Board Chairman, sign a memorandum of understanding at Coast Guard Headquarters in Washington, D.C., June 17, 2021. The MOU institutionalizes best practices developed between the two agencies during recent investigations. (U.S. Coast Guard photo by Petty Officer 1st Class Travis Magee/Released)