This Document Supplement reflects the latest changes in international agreements and statutory law. Among those included: are the contents and United States implementation of the North American Free Trade Agreement (NAFTA) and the World Trade Organization (WTO) agreements, the Trade Act of 1974, and the Tariff Act of 1930. The materials are edited to provide those portions of each document necessary to understand the nature of the organization or law, or which are applicable to resolving problems in the texts. Glossaries define trade acronyms, trade organizations, and terms.