Regulations of Marine Dumping Permit Management Article 9

The validity period of marine dumping permit documents for Category B substances shall be period approved by the central competent authority.Marine dumping permit documents for Category C substances shall have a maximum validity period of three years.
中文原文 海洋棄置許可管理辦法第9條
乙類物質海洋棄置許可文件之有效期間,為中央主管機關核准之期限。
丙類物質海洋棄置許可文件之有效期間最長不得超過三年。

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