Classified National Security Information Protection Act Article 11

At the time of the original classification, each original classification authority shall set a date or event for automatic declassification.The maximum classification period shall be no more than thirty years from the date of approval for Top Secret information, no more than twenty years from the date of approval for Secret information, and no more than ten years from the date of approval for Confidential information.If it is necessary to prolong the classification or change the event of declassification, the original classification authority shall submit the matter to the superior agency for determination. The prolonged classification duration shall not exceed the original classification duration.Classification can only be prolonged two times. Classified information shall be released and make available to the public within 30 years. If there is a special circumstance requiring information to be protected beyond 30 years, an approval of prolonged classification shall be obtained from the Legislative Yuan.If it is necessary to extend or change the classification period or the conditions for declassification, the matter shall be submitted to the original approving agency or its superior agency for approval. The total of the original approval period and the extension period shall not exceed the maximum period specified in Paragraph 2. Classified information shall be released and made available to the public within thirty years. Under extraordinary circumstances, the Legislative Yuan may approve prolonged classification.