"Numerous provisions in federal law are intended to support manufacturing in the United States. Almost without exception, these provisions define manufacturing as the process of physically transforming goods. Physical transformation involves what might be thought of as traditional manufacturing activities such as molding, cutting, and assembly. These laws establish a variety of potential benefits, preferences, or penalties based on the country in which physical transformation occurs. On April 18, 2017, President Trump issued an executive order directing federal agencies to ensure that federal grants and procurement maximize the use of manufactured goods produced in the United States, although it defined 'produced in the United States' only for iron and steel products. [...] These changes in the structure of manufacturing make it difficult to design government policies that support manufacturing-related value added and employment in the United States. Many federal laws adopted with the goal of supporting manufacturing do not take into account the increasingly blurred lines between manufacturing and other types of economic activity."
CRS Report for Congress, R44755
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html