Under the unconditional form, any tariff concessions granted to a third party is granted to the party, a principle that was included in the 1948 General Agreement on Tariff and Trade.

• 无条件最惠国待遇是向缔约国提供给予第三国的一切关税优惠，这是在1948年签订的《关税及贸易总协定》中所包括的一项原则。