The Enforcement Rules of the Audit Act Article 3

According to the Article 8 or Article 9 of the Act, the auditing agency shall notify the scope of delegating affairs by writing to the delegated auditing agency, organization or specialist.The delegated audit agency shall be responsible for the audit decisions. In case of re-examination, the delegated audit agency shall conduct the re-examination affairs. The result of assignment delegated to other organization or specialist shall be decided by the original audit agency.
中文原文 審計法施行細則第3條
審計機關依本法第八條規定委託其他審計機關辦理之審計事務,或依本法第九條規定委託其他機關團體或專門技術人員辦理審計上涉及特殊技術及監視、鑑定等事項,應將委託事務範圍及其他必要事項,以書面通知之。
受委託審計機關所作決定,應負其責任,遇有再審查時,並應由該受委託審計機關辦理之。
委託其他機關、團體或專門技術人員辦理事項,其結果應由原委託之審計機關決定之。

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