tariff binding
A technical term in international trade: a commitment not to raise a tariff above a bound rate. Used in WTO and FTA contexts.
Under the WTO agreements, member countries set tariffs in accordance with their schedules of tariff bindings.
関税 is a general term for customs duties or tariffs, while 関税譲許 specifically refers to the binding of tariff rates under international agreements.
譲許 means concession or granting; 関税譲許 is a compound meaning tariff concession, i.e., binding a tariff at a certain level.
Compound of 関税 (tariff) and 譲許 (concession). The term is a direct translation of the English 'tariff binding' used in international trade law.