Regulations for Quarantine of Plant Regulated Articles Export and Import by Mail Article 5

For plant regulated articles imported by mail in accordance with the provisos of the third paragraph of Article 17 of the Act, the names of the contents shall be clearly specified on the packaging.When an import permit is acquired in accordance with the preceding article, the import permit document must be attached to the package.
中文原文 經郵寄方式輸出入植物檢疫物檢疫作業辦法第5條
符合本法第十七條第三項但書規定郵寄輸入之植物檢疫物,其包裝上應明顯標示內容物名稱。
依前條取得輸入許可者,應將輸入許可文件附於包裝上。

English translation for reference only; the Chinese text prevails. Not legal advice.