Standards are a way to establish nontariff barriers, and examples are:

Question

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Standards can act as non-tariff barriers (NTBs) when they are used to restrict imports by imposing specific requirements that imported goods must meet. Examples include Japan's refusal to import light mayonnaise and Canada's categorization of orange juice with added calcium as a drug, which subjects it to special requirements. These measures can limit market access for foreign products by requiring them to adhere to specific standards or regulations, thus acting as barriers to trade.

Standards Are a Way to Establish Nontariff Barriers, and Examples