National Academies of Science, Engineering, & Medicine Release Report on Improving Safety of Duck Boats
The report, per its summary, makes recommendations to the U.S. Coast Guard, “starting with the use of risk assessment for DUKW operations and then providing specific recommendations to mitigate the hazards discussed in the chapters on flooding, operating areas, canopies, life jackets, and safety operations. All recommendations are specific to WWII DUKWs, Stretch Ducks, and Truck Ducks.”
The report can be downloaded here:
https://www.nap.edu/read/26447/chapter/1