Regulations Governing the Permission and Management of the Export, Research & Development of Imitation Firearms Article 12

After having acquired the approval prescribed in Article 4 and the first paragraph of the preceding article, if the approved items have been changed, the manufacturer shall submit a completed application form, the original approval document and the documents needed to make such change, to the original approving authority to apply for the change. The original approving authority shall process the application in accordance with Article 5 after having received the application.
中文原文 模擬槍許可及管理辦法第12條
廠商取得第四條及前條第一項之許可後,有變更原許可內容者,應檢附申請書、原許可文件及變更事項相關證明文件,向原許可機關申請變更;原許可機關受理申請後,依第五條規定辦理。

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