Under the World Trade Organization's most-favored nation rule, import restrictions are?

• A. All import restrictions are illegal unless proven scientifically
• B. Must be identical to those of every member
• C. Allowed if temporary and justified
• D. Prohibited only for non-tariff barriers

Answer: (A)

The key idea is nondiscrimination: under the MFN rule, a country cannot treat goods from different WTO members differently. If a restriction is imposed on imports from one member, it must be applied to all members in the same way. That means import restrictions should be identical for all trading partners, so no country gets a special advantage or harsher terms than another. This uniform treatment helps maintain a level playing field among members. Note that other WTO rules can allow temporary or justified measures (like safeguards or health and safety exemptions), but those are separate from the MFN obligation and still require fair, non-discriminatory application.