Enforcement Rules of the Classified National Security Information Protection Act Article 17

The classification designation marking prescribed in Article 13 of this Act shall be indicated conspicuously as follows:(1)on the upper left corner of each single-page or loose-leaves document written in vertical format; on the upper left corner of each negative and photograph developed from the negative; on the upper left corner of the added cover page or cover.(2)on the top of each single-page or loose-leaves document written in horizontal format; on the cover or bottom page of the bound volume.(3)on the cover and title of each film, microfilm, sound recording, videotape, machine readable records, and other documentary material. The classification designation shall also be announced in the beginning and at the end of the broadcasting or showing.(4)on the front page and bottom page of each map, photographic map or graphics.(5)on the material itself or on an attached card. If there is a security risk, the classification designation marking shall be marked conspicuously on other suitable place.A Chinese translation of the classification designation shall also be marked on any foreign government information which retains its original classification designation.The marking of date or event for declassification prescribed in Article 13 of this Act, shall be indicated conspicuously within brackets underneath the classification designation marking.The marking of classification designation and date or event for declassification shall be double-crossed after the declassification or downgrading of classified information takes effect, and the following shall be shown on the face of papers copies of all declassified or downgrading documents:(1)the declassification status or the new classification designation and the date or event for declassification;(2)the effective date;(3)the office of origin; and(4)the agency and the identity of the declassification authority or the downgrading authority.All reproduced classified information shall be marked conspicuously to put users on notice of its current classification status and the date or event for declassification as the original documents.
中文原文 國家機密保護法施行細則第17條
本法第十三條所定國家機密等級之標示,其位置如下:
一、直書單頁或活頁文書、照相底片及所製成之照片,於每張左上角標示;加裝封面或封套時,並於封面或封套左上角標示。
二、橫書活頁文書,於每頁頂端標示;裝訂成冊時,應於封面外頁及封底外面上端標示。
三、錄音片(帶)、影片(帶)或其他電磁紀錄片(帶),於本片(帶)及封套標題下或其他易於識別之處標示,並於播放或放映開始及終結時,聲明其機密等級。
四、地圖、照相圖或圖表,於每張正反面下端標示。
五、物品,於明顯處或另加卡片標示。
但有保管安全之虞者,得另擇定適當位置標示。
機密資料含有外國文字,而以外國文字標示機密等級者,須加註中文譯名標示。
本法第十三條所定國家機密保密期限或解除機密條件之標示,應以括弧標示於機密等級之下。
國家機密之變更或解除,應於變更或解除生效後,將該國家機密原有機密等級、保密期限或解除機密之條件以雙線劃除,並於左右兩側或其他明顯之處,註記下列各款事項:
一、解除機密或變更後之新機密等級、保密期限及解除機密之條件。
二、生效日期。
三、核准之機關名稱及文號。
四、登記人姓名及所屬機關名稱。
國家機密複製物之標示,應與原件相同。

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