Final answer:
The Harmonized Tariff System (HTS) requires a classification system for all products and services crossing national borders. It determines customs tariffs and collects trade statistics, playing a key role in trade negotiations and the assessment of nontariff barriers. Therefore, the correct option is B.
Step-by-step explanation:
The entity that requires a classification system for all products and services that will cross national borders is the Harmonized Tariff System (HTS). The HTS is used globally for categorizing traded goods and is instrumental in determining customs tariffs and collecting international trade statistics. It plays a vital role in trade negotiations and in assessing nontariff barriers. These barriers, such as safety standards and rules of origin regulations, can impact trade by making it more costly or difficult to import products.
Accurate classification under the HTS ensures proper tariff application and compliance with trade regulations. By correctly classifying goods, businesses can determine the tariffs that will apply and thus the cost-effectiveness of importing products. The HTS is updated periodically to reflect changes in technology or trade patterns. Therefore, understanding the HTS is essential for companies engaged in international trade.