International trade rules are the norms, principles, and agreements that govern the conduct and regulation of trade between countries. International trade rules can cover various aspects of trade, such as tariffs, quotas, subsidies, standards, intellectual property, dispute settlement, and environmental and social issues. International trade rules can be classified into different types, such as multilateral, regional, bilateral, or unilateral. Multilateral trade rules are those negotiated and enforced by the World Trade Organization (WTO) and its members. Regional trade rules are those established by regional trade agreements (RTAs), such as the European Union (EU) or the North American Free Trade Agreement (NAFTA). Bilateral trade rules are those agreed by two countries or groups of countries, such as the United States-Mexico-Canada Agreement (USMCA) or the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP). Unilateral trade rules are those imposed by one country or group of countries on another, such as sanctions or tariffs.