(a) Derivative classification is (1) the determination that information is in substance the same as information currently classified, and (2) the application of the same classification markings. Persons who only reproduce, extract, or summarize classified information, or who only apply classification markings derived from source material or as directed by a classification guide, need not possess original classification authority. If a person who applies derivative classification markings believes that the paraphrasing, restating, or summarizing of classified information has changed the level of or removed the basis for classification, that person must consult an appropriate official of the originating agency or office of origin who has the authority to declassify, downgrade or upgrade the information.

(b) Persons who apply derivative classification markings shall:

(1) Observe and respect original classification decisions; and

(2) Carry forward to any newly created documents any assigned authorized markings. The declassification date or event that provides the longest period of classification shall be used for documents classified on the basis of multiple sources.

(a) OSTP shall issue and maintain classification guides to facilitate the proper and uniform derivative classification of information. These guides shall be used to direct derivative classification.

(b) The classification guides shall be approved, in writing, by the Director or by officials having Top Secret original classification authority. Such approval constitutes an original classification decision.

(c) Each classification guide shall specify the information subject to classification in sufficient detail to permit its ready and uniform identification and categorization and shall set forth the classification level and duration in each instance. Additionally, each classification guide shall prescribe declassification instructions for each element of information in terms of (1) a period of time, (2) the occurrence of an event, or (3) a notation that the information shall not be automatically declassified without the approval of OSTP.

(d) The classification guides shall be kept current and shall be fully reviewed at least every two years. The Executive Director, OSTP shall maintain a list of all OSTP classification guides in current use.

(e) The Executive Director, OSTP shall receive and maintain the record copy of all approved classification guides and changes thereto. He will assist the originator in determining the required distribution.

(f) The Director may, for good cause, grant and revoke waivers of the requirement to prepare classification guides for specified classes of documents or information. The Director of the Information Security Oversight Office shall be notified of any waivers. The Director's decision to waive the requirement to issue classification guides for specific classes of documents or information will be based, at a minimum, on an evaluation of the following factors:

(1) The ability to segregate and describe the elements of information;

(2) The practicality of producing or disseminating the guide because of the nature of the information;

(3) The anticipated usage of the guide as a basis for derivative classification; and

(4) The availability of alternative sources for derivatively classifying the information in a uniform manner.

(a) Documents classified derivatively on the basis of source documents or classification guides shall bear all markings prescribed in § 2400.12 of this part and Directive No. 1 as are applicable. Information for these markings shall be taken from the source document or instructions in the appropriate classification guide. When markings are omitted because they may reveal a confidential source or relationship not otherwise evident, as described in § 2400.12 of this part, the information may not be used as a basis for derivative classification.

(b) The authority for classification shall be shown as directed in Directive No. 1.