Classified National Security Information Protection Act Article 9

If information which are related to other agencies fall into one of the three classification designations, these relevant agencies shall be consulted before final classification.
中文原文 國家機密保護法第9條
國家機密事項涉及其他機關業務者,於核定前應會商該其他機關。

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