Final answer:
Controls that prohibit or restrict product transport to another country in the US are known as nontariff barriers, which include rules, inspections, and import quotas to regulate trade.
Step-by-step explanation:
In the United States, controls that prohibit or restrict the transport of certain types of products to another country are known as nontariff barriers. These are methods besides tariffs that nations use to regulate trade. Nations create regulations, rules, inspections, and paperwork to make importing more costly or difficult. For instance, mandatory safety standards or import quotas, which are numerical limitations on the quantity of products that can be imported, can effectively limit the flow of goods into a country.
During the 1980s, the United States imposed an import quota on Japanese automobiles as a way to control the automotive trade. Moreover, rules-of-origin regulations are another form of nontariff barriers, which dictate where a product was last substantially altered. These regulations can influence the labeling and classification of products in international trade.