Work prepared by U.S. Government employees in their official capacities is not
subject to copyright in the United States. Such authors must place their work in the public domain, meaning that it can be
freely copied, republished, or redistributed. In order for the work to be placed in the public domain, ALL AUTHORS must
be official U.S. Government employees. If at least one author is not a U.S. Government employee, copyright must be
transferred to ASCE by that author