ad valorem tariffglossary / ad valorem tariff A tariff set as a percentage of the imported goods’ value.• This is the primary method used to calculate customs duties. 词条贡献者 译者Natalie,在一家西班牙律师事务所的北京办公室担任全职法律翻译,擅长翻译涉及医疗健康领域的法律文件。