Center for Development
of Security Excellence
May 2024
JOB AID
MARKING NATIONAL
SECURITY INFORMATION
MARKING CLASSIFIED INFORMATION JOB AID
All classification markings within this publication are unclassified and are for illustrative purposes only.
2
INTRODUCTION
This job aid gives Department of Defense (DOD) personnel and contractors an overview of the
specific marking requirements necessary to protect classified and Controlled Unclassified Information
(CUI). The job aid offers an integrated approach to the major requirements for marking and control of
information, briefly explaining the reasons for marking and providing examples of correctly marked
information. To facilitate information sharing and declassification processes whenever practicable, a
classified attachment, addendum, annex, enclosure, or similar section shall be used when classified
information constitutes only a small portion of an otherwise unclassified document.
CONTENTS
Click the individual links to view each topic.
General Marking Requirements
3
Marking Originally Classied Information
4
Banner Lines
5
Portion Markings
6
Section 1 - Marking Derivatively Classied Information
11
Section 2 - Marking Special Types of Information and Materials
19
Section 3 - Atomic Energy Information
24
Section 4 - Special Access Programs (SAPs)
26
Section 5 - Intelligence Information
29
Section 6 - Controlled Unclassied Information (CUI)
31
Section 7 - Marking Information Other Than Documents
32
Appendix A – References
40
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MARKING CLASSIFIED INFORMATION JOB AID
All classification markings within this publication are unclassified and are for illustrative purposes only.
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GENERAL MARKING REQUIREMENTS
PURPOSE
Marking is the principal way of letting information holders know the specic protection requirements
for that information. Markings, designations, and electronic labeling serve several purposes; specically,
they:
• Alert holders to the presence of classied information and or controlled unclassied information
• Identify, as specically as possible, the exact information needing protection and level of protection
required
• Give information on the source(s) and reason(s) for classication of the information
• Identify the oce of origin and document originator applying the classication markings
• Provide guidance on information sharing
• Warn holders of special access, dissemination control, or safeguarding requirements
• Provide guidance on downgrading (if any) and declassication for classied information
BACKGROUND AND POLICY
DOD policy is to maximize the availability of information consistent with the restraints necessary to
protect national security, U.S. economic security, and the rights and interests of individuals, businesses,
and foreign governments. To implement this policy, DOD personnel must be able to understand
and balance the diverse requirements that guide their decisions about managing the ow of DOD
information and data.
All classied information needs to be identied clearly by:
• Electronic labeling
• Designation
• Marking
Proper marking and designation of classied information are the specic responsibility of original and
derivative classiers.
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MARKING CLASSIFIED INFORMATION JOB AID
All classification markings within this publication are unclassified and are for illustrative purposes only.
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MARKING ORIGINALLY CLASSIFIED INFORMATION
Original classication is an initial determination made by an original classication authority (OCA) that
information requires, in the interest of national security, protection against unauthorized disclosure.
Standard markings are required for all documents that contain originally classied information. The
information is to be shown using these marking elements: banner lines, portion marks, agency, oce of
origin, date of origin, and classication authority block (OCA or derivative).
The overall process for properly marking a document requires the classier to:
• Determine the overall
classification of the document.
• Identify the classification level of
each portion contained in the
document.
• Every classified document shall
show on the first page, title page
or front cover, the “originating
agency and office and the date of
the document’s origin.” Identify
the OCA on the “Classified by”
line.
• Annotate the declassification
instructions and any
downgrading instructions on the
“Declassify on” line (as
applicable).
• Identify special access,
dissemination controls, and
handling or safeguarding
requirements that apply.
SECRET//REL TO USA, GBR
OFFICE OF THE UNDER SECRETARY
OF DEFENSE
INTELLIGENCE AND SECURITY
Classified By: OCA Name and Position Title
Reason: 1.4(c)
Downgrade to: CONFIDENTIAL on 20251231
Declassify On: 20280916
Dec 28, 20XX
MEMORANDUM FOR XXXXXXXXX XXXXXXXXXXXX
SUBJECT: (U) Delegation of SECRET Original Classification Authority (OCA)
(U) You are hereby delegated authority to classify information up to SECRET for
information under your area of responsibility in accordance with Executive Order
13526. “Classified National Security Information” (the Order).
(S//REL) As an OCA you are required to receive training in original classification
as provided by the Order and implementing directives prior to you exercising this
authority. Your Security Manager will facilitate this training.
(S//REL) The Order also provides that OCAs shall prepare classification guides to
facilitate the proper uniform derivative classification of information. Request that you
provide a copy of your guide(s) to this office by December 31, 20XX.
SECRET//REL TO
USA, GBR
Portion
Markings
Banner Line (overall
classification marking)
Classification
Authority Block
Classification Separator Dissemination Control
Display the date for downgrading/declassification
numerically using the format displayed in this
example: (YYYYMMDD).
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MARKING CLASSIFIED INFORMATION JOB AID
All classification markings within this publication are unclassified and are for illustrative purposes only.
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BANNER LINES
One step in marking a classied document is determining the overall classication of the document.
Only by identifying the proper classication for each portion can the overall classication level be
determined. The banner line shall specify the highest level of classication (CONFIDENTIAL, SECRET, and
TOP SECRET) of information contained within the document and the most restrictive control markings
applicable to the overall document (hereafter referred to as overall classication).
1. The highest level of classification is determined by the highest level of any one portion within the
document.
2. The classification level in the banner line must be in English and spelled out completely in all
capital letters. Only one classification level shall be used.
3. Any other control markings (e.g. dissemination control markings) included may be spelled out or
abbreviated as shown in the example below.
4. Banner line markings always use uppercase letters.
Conspicuously place
the banner line at the
top and bottom of
the page.
TOP SECRET
DEPARTMENT OF DEFENSE
PENTAGON, WASHINGTON, DC
MEMORANDUM FOR USD(P)
SUBJECT: (U) Banner Markings
1. (U) This paragraph contains “Unclassied” information. Therefore, this paragraph will be
marked with the designation “U” in parentheses.
a. (C) This sub-paragraph contains “Condential“ information. Therefore, this paragraph will
be marked with the designation “C” in parentheses.
b. (TS) This sub-paragraph contains “Top Secret“ information. Therefore, this paragraph will
be marked with the designation “TS” in parentheses.
Classified By: Stephen A. Cambone
USD(I&S) Director
Reason: 1.4(d)
Declassify On: 20250930
October 15, 20XX
TOP SECRET
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MARKING CLASSIFIED INFORMATION JOB AID
All classification markings within this publication are unclassified and are for illustrative purposes only.
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PORTION MARKINGS
A portion is ordinarily dened as a paragraph, but also includes subjects, titles, graphics, tables, charts,
bullet statements, sub-paragraphs, classied signature blocks, pictures, illustrations, and other portions
within slide presentations, and the like.
Examples of portion markings
(U) (C) (S) (TS) (CUI) (S//NF/PROPIN)
(C//FRD) (//GBR S) (TS//SI/TK) (S//RD)
(S//REL) (TS//REL TO USA, AUS, CAN, GBR) (S//RD-N)
SUBJECT: (U) Portion Marking for Title or Subject Line
1. (U) This paragraph contains Unclassied information. Therefore, this paragraph will be marked
with the designation “U” in parentheses.
a. (C) This sub-paragraph contains “Condential“ information. Therefore, this paragraph will be
marked with the designation “C” in parentheses.
b. (S) This sub-paragraph contains “Secret“ information. Therefore this paragraph will be marked
with the designation “S” in parentheses.
2. (TS) This paragraph contains “Top Secret“ information. Therefore this paragraph will be marked
with the designation “TS” in parentheses.
Classication designations for
portion markings are:
• (U) for Unclassied
• (C) for Condential
• (S) for Secret
• (TS) for Top Secret
These abbreviations are placed in
parentheses before the portion to
which they apply and are always in
uppercase letters.
Whenever possible, use an
unclassied title or subject line.
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MARKING CLASSIFIED INFORMATION JOB AID
All classification markings within this publication are unclassified and are for illustrative purposes only.
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If a document contains more than one page, the banner line will be placed at the top and bottom of the
front cover (if any), the title page (if any), the first page, and on the outside of the back cover (if any), or
last page of each classified document.
SECRET
SECRET
SECRET
SECRET
SECRET
SECRET
SECRET
Department of Defense
Special Report
(U) ANX-123
1 September 20XX
Classified by: ______
Reason: ___________
Declassify on: ______
SECRET
Front Cove
r
SECRET
4. (U) This paragraph contains
Unclassied information. There-
fore, this paragraph will be marked
with the designation “U” in paren-
theses.
5. (S) This paragraph contains
“Secret” information. Therefore,
this paragraph will be marked
with the designation “S” in
parentheses.
SECRET
Each interior page of a classied document
shall be marked with a banner line at the top
and bottom of the page. Banner markings used
on interior pages are also referred to as page
markings.
or
With the highest classication level of information
contained on that page.
Alternatively mark all interior pages of the
document with the overall classication of the
document and any applicable control markings.
Title Page
First Page
Back Cover
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MARKING CLASSIFIED INFORMATION JOB AID
All classification markings within this publication are unclassified and are for illustrative purposes only.
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“CLASSIFIED BY” AND “REASON” FOR CLASSIFICATION AUTHORITY BLOCK
SECRET
DEPARTMENT OF DEFENSE
DEFENSE PENTAGON, WASHINGTON, DC
MEMORANDUM FOR USD(P)
SUBJECT: (U) Classification Authority Block
1. (S) When properly marking a document, indicate the authority for the classication
determination on the document or last page, of each classied document. This is accomplished
by placing the OCA on the “Classied by” line. The “Classied by” line should include the name
or personal identier of the actual classier and their position. If the identication of the
originating agency is not apparent on the face of the document, place it below the “Classied
by” line.
2. (U) Each original classication decision shall state a “reason” for classifying. Classication
may be applied only to information described in the following categories as specied in section
1.4 of Executive Order (E.O.) 13526, “Classied National Security Information”:
a. (U) Military plans, weapons systems, or operations
b. (U) Foreign government information
c. (U) Intelligence activities (including special activities), intelligence sources or
methods, or cryptology
d. (U) Foreign relations or foreign activities of the United States, including
condential sources
e. (U) Scientic, technological, or economic matters relating to national security,
which includes defense against transnational terrorism
f. (U) United States Government programs for safeguarding nuclear materials or
facilities
g. (U) Vulnerabilities or capabilities of systems, installations, infrastructures, projects,
plans, or protection services relating to national security, which includes defense
against transnational terrorism
h. (U) Development, production, or use of weapons of mass destruction
Classified By: Wilma Y. Jones
Director, NAAFMC
Reason: 1.4(a) and (d)
Declassify On: 20251231
August 30, 20XX
SECRET
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All classification markings within this publication are unclassified and are for illustrative purposes only.
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“DECLASSIFY ON” LINE
The nal essential marking indicates the duration of classication. The OCA should select, to the
greatest extent possible, the declassication instruction that will result in the shortest duration of
classication. This information is placed on the “Declassify on” line. When determining the duration of
classication, the OCA should choose one of the following three declassication instructions.
1. Date or Event
When possible, identify the date or event for
declassication which corresponds to the lapse of
the information’s national security sensitivity, which
is equal to or less than 10 years from the date of the
original classication.
OR
2. Ten Year Duration
When a specic date or event cannot be
determined, identify the date that is 10 years from
the date of the original classication.
OR
3. Twenty-ve Year Duration
If the sensitivity of the information warrants
protection beyond 10 years, then the OCA may
assign a declassication date up to, but no more
than, 25 years from the date of the original
classication.
Note: The identity of a condential human source or a
human intelligence source is not subject to automatic
declassication. Should the information clearly and
demonstrably be expected to reveal the identity of a
condential human source or a human intelligence
source, the designation 50X1-HUM shall be used.
Classified by: Keith M. Morris USD(R)
Reason: 1.4(a)
Declassify on: 20490901
September 1, 2024
(Date of document)
Classified by: Keith M. Morris USD(R)
Reason: 1.4(a)
Declassify on: 20340901
or
Completion of Operation
September 1, 2025
(Date of original classification)
Classified by: Keith M. Morris USD(R)
Reason: 1.4(a)
Declassify on: 20331231or
Completion of Operation
September 1, 2025
(Date of document)
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MARKING CLASSIFIED INFORMATION JOB AID
All classification markings within this publication are unclassified and are for illustrative purposes only.
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If the information should clearly and demonstrably be
expected to reveal key design concepts of weapons of mass
destruction (do not include a declassication date or event),
then designation 50X2-WMD shall be used.
NOTE: When 50X1-HUM and 50X2-WMD are used, a specic date
or event for declassication of the information will not be used.
The Interagency Security Classication Appeals Panel (ISCAP) can
approve an exception to the 50X1 and X2. If there is a need for a
longer period, consult ISCAP. The ISCAP can grant approval of a
75-year exemption (i.e., 75X1 through 75X9) with date or event for
declassication.
CLASSIFICATION EXTENSIONS
An OCA may extend the duration
of classication up to 25 years from
the date of the original classication,
change the level of classication, or
reclassify specic information.
Revise the “Declassify on” line to
include the new declassication
instructions, the identity of the
OCA authorizing the extension, and
the date of the action.
Reasonable attempts should be
made to notify all holders of a
classication extension.
Classied By: John E. Doe, Chief
Division 5
Reason: 1.4(a)
Declassify On: 50X2-WMD
Classied By: John E. Doe, Chief
Division 5
Reason: 1.4(a)
Declassify On: 75X5, 20901231
SECRET
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR DASD(I&S)
SUBJECT: (U) Classication Extensions Markings
1. (S) This paragraph contains “Secret“ information. Therefore this paragraph will be
marked with the designation “S” in parentheses.
Jane G. White
Dir, USNTL
Classified By: Jane G. White, director
USNTL
Reason: 1.4(a)
Declassify On: 20210107
Classification extended on 20201125 to 20241221 by Brian Howard, Dir. ADHT
June 3, 20XX
SECRET
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All classification markings within this publication are unclassified and are for illustrative purposes only.
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SECTION 1 - MARKING DERIVATIVELY
CLASSIFIED INFORMATION
Derivative classication is the act of incorporating, paraphrasing, restating, or generating in new form
information that is already classied and marking the newly developed material consistent with the
markings of the source information. The source information ordinarily consists of a classied document,
or documents, or a classication guide issued by an OCA.
When using a classication guide as the basis for derivative classication, the instructions provided by
the guide are to be applied to the derivative document.
The “Classied by” line is a required part of a derivative document. List name and position title or
personal identier of the Derivative classier and, if not otherwise evident, include the agency and
oce of origin. The “Reason” line, as reected in the source document(s) or classication guide, is not
transferred to the derivative document.
Overall classification markings for derivatively classified documents are applied in the same manner as
originally classified documents.
SOURCE DOCUMENT DERIVATIVE DOCUMENT
SECRET
(U) Special Report -- ANX-128
1. (U) This paragraph contains “Unclassified”
information. This portion will therefore be marked with
the designation “U” in parentheses.
2. (S) This paragraph contains “Secret” information.
This portion will therefore be marked with the
designation “S” in parentheses.
Classified by: Keith M. Morris USD(I&S)
Director
Reason: 1.4 (a) & (d)
Declassify on: 20321231
September 1, 20XX
SECRET
SECRET
(U) ABC Battalion Report
1. (S) This paragraph contains incorporated
information taken from the second paragraph of a
source document, a paragraph marked “Secret.”
Therefore, this paragraph is marked with an “S.” This
“derivative” document contains no other classified
information. Therefore, portion mark all other portions
with a “U.”
2. (U) This paragraph contains “Unclassified”
information. Therefore, this paragraph will be marked
with the designation “U” in parentheses.
Classified by: James Smith USD(I&S)
Division Chief
Derived from: Special Report— (U) ANX-
128, dtd 20210901
Declassify on: 20321231
October 15, 20XX
SECRET
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All classification markings within this publication are unclassified and are for illustrative purposes only.
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“CLASSIFIED BY, DERIVED FROM, AND DECLASSIFY ON” LINES
SECRET
DEPARTMENT OF DEFENSE
PENTAGON, WASHINGTON, DC
MEMORANDUM FOR USD(P)
SUBJECT: (U) “Classified by,” “Derived from” and ”Declassify on” Line
1. (U) The face of each derivatively classied document shall include a classication authority
block consisting of these elements: “Classied by,” “Derived from,” and “Declassify on.”
2. (S) D
eclassication and downgrading instructions, which are added to the classica
tion
author
ity block as applicable, shall be carried forward by the derivative classier fr
om the
source document(s), from instructions in the appropriate security classication guide(s), or from
other classica
tion guidance issued by the OCA.
Classified by: Name and position or identifier
Derived from: USD(I&S) Memorandum
Subj: (U) Derivative Classification Marking,
20XX0625
Declassify on: 20XX0609
July 15, 20XX
SECRET
SECRET
Subject: (U) Derivative Classification
Markings
Classified by: Mary Smith,
Analyst USD(I&S)
Reason: 1.4 (a) & (d)
Declassify on: 20XX0609
June 25, 20XX
(Date of origin)
SECRET
SOURCE DOCUMENT
NOTE: The information contained within the document below is taken from policy. Individuals will
comply accordingly.
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All classification markings within this publication are unclassified and are for illustrative purposes only.
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25X1 – 25X9 ON THE “DECLASSIFY ON” LINE
The 25X exemptions may only be used on the “Declassify
On” line if an agency has identied permanently valuable
information that needs to be exempted from automatic
declassication at 25 years and has received approval from
the ISCAP to exempt the information and to incorporate the
exemption into a classication guide. (See 32 C.F.R. Parts
2001.26 and 2002). When using an approved exemption, a date
or event that has been approved by the ISCAP must be included
with the marking and shall not exceed 50 years from the date of
the original classication.
The identity of a condential human source or a human
intelligence source is not subject to automatic declassication.
The marking for the exemption of this specic information is:
Declassify on: 50X1-HUM
“The marking “50X1-HUM” replaces “25X1-Human,” which is
no longer an authorized declassication instruction. As stated
in section 1.5(d) of E.O. 13526, no information may remain
classied indenitely; therefore, information marked as “25X1-
Human” will be subject to automatic declassication. Since
the “25X1-Human” marking will continue to be found on
originally and derivatively classied documents for many years,
it will be treated as having the same classication duration as
“50X1-HUM,” and that information is not subject to automatic
declassication for up to 75 years.”
Use of 50X and 75X exemptions:
In extraordinary cases, agency heads may, within ve years
of the onset of automatic declassication, propose to further
exempt specic information from declassication at 50 years
and at 75 years. These are subject to approval by the ISCAP.
ISCAP-approved exemptions at 50 and 75 years will include a
date or event that has been approved by the ISCAP.
Classified by: Keith M. Morris USD(I&S)
Director
Reason: 1.4(a)
Declassify on: 50X1-HUM
September 1, 20XX
(Date of original classification)
Classified by: Keith M. Morris USD(I&S)
Director
Reason: 1.4(c)
Declassify on: 25X3, 20630901
dates are required with all other 25, 50,
75X exemptions except 1 & 2
Completion of Operation
September 1, 20XX
(Date of original classification)
Classified by: Keith M. Morris USD(I&S)
Director
Reason: 1.4(a)
Declassify on: 50X1-HUM
September 1, 20XX
(Date of original classification)
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All classification markings within this publication are unclassified and are for illustrative purposes only.
14
PREVIOUSLY USED DECLASSIFICATION INSTRUCTIONS
When a source document is classied derivatively either from a source document(s) or a classication
guide that contains one of the following previously used declassication instructions, ‘‘Originating
Agency’s Determination Required’’, ‘‘OADR’’ (or source marked OADR), “Manual Review” (or source
marked MR), “MR”, “DCI Only” and “DNI Only” or any of the exemption markings “X1, X2, X3, X4, X5, X6,
X7, and X8,” the derivative markings shall use a calculated declassication date that is 25 years from the
date of the creation of the derivative document, unless other guidance from the OCA is available.
Classified By: Mary Jones
Director of Security
Department of Good Works
Reason: 1.4(g)
Declassify On: X4
SECRET
SECRET
Classified By: ID #IMN01
Derived From: Document dated 20XX1202
Subj: Equip Procurement
Department of Good W
orks
Declassify On: 20XX1202
UNCLASSIFIED - CLASSIFICATION MARKINGS FOR ILLUSTRATION
PURPOSES ONLY
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All classification markings within this publication are unclassified and are for illustrative purposes only.
15
Portion Markings
DERIVATIVELY CLASSIFYING FROM MULTIPLE SOURCES
When using more than one
classied source document in
creating a derivative document,
portion mark the classied
information incorporated in the
derivative document with the
classication level indicated on the
source documents. In the example
shown, paragraph one of the
derivative document incorporates
“Secret” information from paragraph
one of Source 1 and paragraph
two of the derivative document
incorporates “Condential”
information from paragraph one
of Source 2. The remainder of the
derivative document is “Unclassied.”
Banner Markings
The derivative document will
be conspicuously marked at the
top and bottom with the highest
classication level of information
found in any portion of the
document. The overall classification
shown here is “SECRET.”
The banner line on an interior page
shall specify either the highest level
of classication, with applicable
control markings, of the information
contained on that page, or the
overall classification of the
document.
SECRET
(S)____________
CONFIDENTIAL
CONFIDENTIAL
(C)___________
______________
SECRET
SECRET
(S)______________
_______________
(C)______________
_______________
(U)______________
_______________
SOURCE 1
SOURCE 1
SOURCE 2
SOURCE 2
DERIVATIVE
DERIVATIVE
SECRET
(S)____________
CONFIDENTIAL
CONFIDENTIAL
(C)___________
______________
SECRET
SECRET
(S)______________
_______________
(C)______________
_______________
(U)______________
_______________
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All classification markings within this publication are unclassified and are for illustrative purposes only.
16
“Classied by” Line / “Derived from” Line
The “Classied by” line will contain the name and position or personal identier of the derivative
classier. If not otherwise evident, include the agency and oce of origin.
(S)__________________
___________________
Classified by: Mary Pierce,
Analyst USD(P)
Reason: Foreign Relations
Declassify on: 20XX0319
(C)__________________
___________________
Classified by: Lauren Michaels,
Div. Chief
Reason: 1.4(a)
Declassify on: 20XX0501
(S)__________________
___________________
(C)__________________
___________________
(U)__________________
___________________
Classified by: Paul James,
Director
Derived From: Multiple
Sources
Declassify on: 20XX0319
SOURCE 2 DERIVATIVE
SOURCE 1
“Derived from” Line
Enter “Multiple Sources” on the
“Derived from” line of a
derivative document to
indicate that more than one
classified source was used.
When citing multiple sources
in the CAB, also include an
annotated list of multiple
sources on the bibliography/
reference page of the
derivative document.
A document derivatively
classified from a single
classified source document
that is itself marked “Multiple
Sources” shall cite the specific
source document on its
“Derived From” line rather than
using the term “Multiple
Sources.”
SECRET
DEPARTMENT OF DEFENSE
PENTAGON, WASHINGTON, DC
MEMORANDUM FOR AGENCY OFFICIALS
From: John E Doe, Division Chief
Subject: (U) Examples
1. (S) This is paragraph 1 which contains “Secret” information. This
portion will therefore be marked with the designation “S” in
parentheses.
2. (U) This is paragraph 2 which contains “Unclassified” information.
This portion will therefore be marked with the designation “U” in
parentheses.
Classified By: John E. Doe, Division Chief
Derived from: Multiple Sources
Declassify on: 20XX0627
June 27, 20XX
SECRET
SECRET
DEPARTMENT OF THE NAVY
WASHINGTON, DC
MEMORANDUM FOR AGENCY OFFICIALS
From: Joe Carver, Director
Subject: (U) Examples
1. (S) This is paragraph 1 which contains “Secret” information. This
portion will therefore be marked with the designation “S” in
parentheses.
Classified By: Joe Carver, Director
Derived From: Department of Defense
Memorandum dated June 27, 20XX, Subj:
Examples
Declassify on: 20XX0627
July 15, 20XX
SECRET
DERIVATIVE DOCUMENT USED
AS A SOURCE
DERIVATIVE DOCUMENT
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All classification markings within this publication are unclassified and are for illustrative purposes only.
17
DOCUMENTATION OF CLASSIFIED SOURCES USED
As already noted, the list of multiple sources must be included with or annotated on the derivative
document. If the document has a bibliography or reference list, this may be used as the list of
sources. Annotate it to distinguish the sources of classification from other references.
“Declassify on” Line
Specify the date or event for declassication,
exemption category with date or event for
declassication, or other declassication instruction
corresponding to the longest period of classication
among the source document(s), security classication
guide(s), and other applicable classication guidance
issued by the OCA.
Sources: 1.
MEMORANDUM FOR DASD(I&S)
June 12, 20XX
SUBJECT: (U) Security Awareness of
Classification Markings
Sources: 2.
MEMORANDUM FOR DASD(I&S)
Oct 31, 20XX
SUBJECT: (U) Security Awareness
SECRET
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR DASD(I&S)
SUBJECT: (U) “Classied by”, “Derived from” and
”Declassify on” Line
1. (U) Security Awareness of Classication
Markings (S) This paragraph contains “Secret”
information. This portion will therefore be marked
with the designation “S” in parenthesis.
Classified By: John Smith, SECDEF
Analyst, USNTL
Derived from: DOD Dept of Good works memo
dated 20181202, Subj: Equip Procurement
Declassify on: 20221009
October 31, 20XX
SECRET
SECRET
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR DASD(I&S)
SUBJECT: (U) Security Awareness of Classication Markings
1. (S) This paragraph contains “Secret” information. This portion will
therefore be marked with the designation “S” in parentheses.
Classified By: Jane G. White
Analyst, USNTL
Reason: 1.4(a)
Declassify on: 20250603
JUNE 12, 20XX
SECRET
SECRET
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
1. (S) ---------------------------------------------------------
-----------------------------------------------------------------
----------------------------------------
2. (S) ---------------------------------------------------------
-----------------------------------------------------------------
----------------------------------
Classified by: Jane G. White
Analyst , USNTL
Derived from: Multiple Sources
Declassify on: 20250603
SECRET
If the document is classied by “Multiple Sources” and dierent declassication instructions apply to
information included, determine the MOST RESTRICTIVE declassication instruction that applies to any
of the source information (i.e., the one farthest in the future giving the longest period for classication)
and place it on the “Declassify on:” line. This will ensure all the information in the document is protected
for as long as necessary.
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All classification markings within this publication are unclassified and are for illustrative purposes only.
18
DERIVATIVELY CLASSIFYING FROM A SECURITY CLASSIFICATION GUIDE
A Security Classication Guide (SCG) is a document issued by
an OCA that provides derivative classication instructions. It
describes the elements of information that must be protected
and the level and duration of classification. When an SCG is
used to determine the declassification date of a derivatively
classied document, use the declassication instructions
provided by the OCA. A date derived or calculated in
accordance with instructions in the guide shall not exceed 25
years from the date of the creation of the derivative document,
except for information that would reveal the identity of a
condential human source or a human intelligence source or
key design concepts of weapons of mass destruction or for
which the guide cites an authorized exemption category.
Portion Markings
Paragraph 1 of this derivative document contains information
that paragraph 3 of the SCG species shall be classied
“Condential”. Following the guidelines of the SCG the rst
paragraph has been marked with a “C”. All other portions
are Unclassied, as indicated in the SCG, and are marked
appropriately with a “U”.
Banner Line
Conspicuously mark the overall classication at the top and bottom of the derivative document. As
shown here, the highest classication level is “CONFIDENTIAL”.
DEPARTMENT OF DEFENSE
(U) Security Classication
Guide - 128
20XX0420
DEPARTMENT OF DEFENSE
(U) Security Classication
Guide – 128
Subject Level Reason Duration
Program Planning U
Program Progress U
Technical Scope C 1.4(a) 20230401
Vulnerability S 1.4(g) 20230401
CONFIDENTIAL
SCG - 128
(C) This paragraph includes
information about technical scope.
(U) This paragraph includes
information on program planning.
(U) This paragraph includes
information on program progress.
Classied by: Joe Smith, Director
Derived from: Scty Class Guide #128
Dtd: 20130420
Declassify on: 20230401
CONFIDENTIAL
SAMPLE PAGE FROM THE SAMPLE GUIDE
DERIVATIVE
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All classification markings within this publication are unclassified and are for illustrative purposes only.
19
SECTION 2 - MARKING SPECIAL TYPES OF INFORMATION
AND MATERIALS
WORKING PAPERS
Working papers are documents and material accumulated or created when
preparing or drafting finished documents and material. Working papers
containing classified information must be:
• Dated when created
• Annotated as “Working Paper”
• Marked with the highest level of classication of any information
contained within
• Protected in accordance with the assigned classication
• Accounted for, controlled, and marked in the manner prescribed for a nished document of the
same classication level when retained more than 180 days from the date of origin (30 days for
SAPs), released by the originator outside the activity or led permanently. Destroy when no longer
needed. This requirement extends to all classication levels.
ELECTRONICALLY TRANSMITTED MESSAGES
Classied information resident in an electronic environment, and retained as permanent records, must
be marked, as would any other classied document:
E-mail
1. Shall display the banner line at the top and bottom of the body of each message. A single linear
text string showing the overall classification, to include dissemination and control markings, shall
be included as the first line of text and at the end of the body of the message after the signature
block. The banner marking for the e-mail shall reflect the classification of the header and body of
the message. This includes the subject line, the text of the e-mail, any classified signature block,
attachments, included messages, and any other information conveyed in the body of the e-mail.
2. Classified e-mail shall be portion marked. A text portion containing a uniform resource locator
(URL) or reference (i.e., link) to another document shall be portion marked based on the
classification of the content of the URL or link text, not the content to which it points.
3. Properly completed “Classified by” and “Reason” lines or “Derived from” line, declassification
instructions, and downgrading instructions (when applicable) must be included in the classification
authority block. Declassification and downgrading instructions will not be used on information
containing Restricted Data or Formerly Restricted Data.
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All classification markings within this publication are unclassified and are for illustrative purposes only.
20
CLASSIFIED MARKINGS FOR E-MAILS
(U) Test Message -Message (Rich Text)
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Subject: (U) Test Message
SECRET//NOFORN
(
U) This is a test message to demonstrate the correct markings of an e-mail.
(S//NF) This paragraph is marked SECRET//NOFORN for demonstration purposes only.
(S) The classification on the subject line of the e-mail annotates the classification of the subject line, not the document.
(S) The top and bottom lines of the e-mail contain the overall classification of the e-mail (including classification of attachments),
including the applicable dissemination markings.
(U) Ensure any attachments are also properly marked.
(U) When listing attachments in the e-mail, mark the classification of the title/subject of the attachment as shown below. Do not mark
it with the overall classification of the document. The banner line on the front page of the document package of the documents, etc. will indi-
cate the overall classification of the package as a whole. Portion markings indicate the classification level of the information in that portion,
whether it be a title, subject, or paragraph.
TAB A:
(U)
Staff Summary Sheet
TAB B: (U) Memorandum
Classified by: Peggy Mason, Program Manager
Derived From: Memorandum, dated 20120201
Declassify on: 20XX1213
SECRET//NOFORN
Start
Inbox- Microsoft Outlook
Markings Implementation...
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(U)
Test Message - M...
10:16 AM
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All classification markings within this publication are unclassified and are for illustrative purposes only.
21
FOREIGN GOVERNMENT INFORMATION (FGI)
Most foreign governments, as well as NATO,
use three classication markings that generally
equate to U.S. Top Secret, Secret, Condential.
Many of these governments also have a
fourth classication marking, Restricted, for
which there is no U.S. equivalent. NATO has
a fth category of controlled information,
NATO Unclassied. Some governments also
have unclassied information protected by
law or national regulations that is treated
and provided to other governments as “in
condence” information.
Mark portions that contain the FGI to indicate
the country of origin (trigraph) and the
classication level. Substitute the words
“Foreign Government Information” or “FGI”
where the identity of a specic government
must be concealed. The identity of the
concealed foreign source in this example
must be maintained with the record copy and
adequately protected.
Note: If the fact that information is FGI must be
concealed, the information shall be marked as if
it were wholly of U.S. origin.
SECRET//FGI CAN
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR THE DIRECTOR
From: John E. Doe, Chief Division 5
SUBJECT: (U) Foreign Government Information
1. (U)
This paragraph contains “Unclassified” information.
2. (C) This paragraph contains “Confidential” information from a U.S.
source document. Therefore, this portion will be marked with the
designation “C” in parentheses.
3. (//CAN S) This paragraph contains only Canadian Secret
information within a U.S. classified document. As such, this
paragraph will be portion-marked with the Canada country of origin
trigraph and the classification level.
Classified By: John E. Doe, Chief Division 5
Derived from: Multiple Sources
Declassify on: 20350215
February 15, 20XX
SECRET//FGI CAN
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All classification markings within this publication are unclassified and are for illustrative purposes only.
22
INFORMATION DETERMINED RELEASABLE TO FOREIGN NATIONALS
Information that has been determined releasable through
established foreign disclosure procedures to foreign nationals,
international organizations or multinational forces will be marked
with the overall classication level and “REL TO USA” and the
applicable country trigraph(s) and/or international organization
or multinational forces tetragraph on the document’s banner line.
Letters of Transmittal
Transmittal documents are documents that have information
enclosed with or attached to them. An example is a letter,
memo, or sta summary sheet with classied enclosures. The
transmittal document itself may or may not contain classied
information.
a. Mark the banner line of an unclassied transmittal document
with the highest classication level of any information
transmitted by it. Also mark the transmittal document with an
appropriate instruction indicating that it is unclassied when
separated from the classied enclosures (e.g., “Unclassied
when separated from classied enclosures” or “Unclassied
when Attachment 1 is removed”).
1. If any dissemination control markings apply to the
transmittal document or any enclosure, include them on
the banner line of the transmittal document.
2. Unclassied transmittal documents do not require portion
markings or a classication authority block.
3. It is not necessary to use a banner line on interior pages of
an unclassied transmittal document.
4. All of the markings required herein, including a
classication authority block, shall appear on the classied enclosure(s) or attachment(s).
5. If any special notice (e.g., NATO, RD, FRD, or export control) applies to the transmittal document
or the enclosure(s), include a statement on the face of the transmittal document highlighting
inclusion of the information. Unless directed otherwise by applicable policy or regulation, a
statement similar to “Document transmitted herewith contains [level of classication]
RESTRICTED DATA” or “This document contains NATO [level of classication] information” will
suce.
SECRET//REL TO USA, CAN, GBR
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR DASD(I&S)
SUBJECT: (U) Foreign Government Information
1. (S//REL) This paragraph contains U.S. Secret material and is
authorized for release to both Canada and Great Britain.
Classified by: Chief, USD(I&S)
Derived from: Multiple Sources
Declassify on: 20XX1015
September 20, 20XX
SECRET//REL TO USA, CAN, GBR
SECRET
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR DASD(I&S)
SUBJECT: (U) Letters of Transmittal
(U) Document must be portion marked if classified and have
appropriate classification authority block instructions.
Mary Frank
June 23, 20XX
Chief ASDG
(U) Attachment:
1. Secret USD(I&S) Memorandum, 10/31/20XX,
Subj: Markings,
Unclassified when separated from classified enclosures
SECRET
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All classification markings within this publication are unclassified and are for illustrative purposes only.
23
CLASSIFICATION BY COMPILATION
When a document consisting of individually unclassied items of information is classied by
compilation, the overall classification will be marked conspicuously at the top and bottom of each
page and on the outside of the front and back covers (if any). An explanation of the basis for
classification by compilation will be placed on the face of the document or included in the text.
If portions, standing alone, are unclassied, but the document is classied by compilation or
association, mark the portions “U” and the document and pages with the classication of the
compilation. You must also add an explanation of the classication or the circumstances involved with
association.
If individual portions are classied at one level, but the compilation is a higher classication, mark each
portion with its own classication, and mark the document and pages with the classication of the
compilation. An explanation of the classication by compilation is required.
SECRET
June 27, 2012
1. (U) This paragraph, when associated with paragraph 2, is
classified SECRET.
2. (U) This paragraph when associated with paragraph 1, is
classified SECRET.
Classified by: John E. Doe, Chief, Division 5
Reason: 1.4(a)
Declassify on: 20XX1231
Classified by compilation: The individual portions of this
document are unclassified (and may be used, stored,
transmitted, and shared as unclassified) except where
otherwise noted within the body of the document.
SECRET
Department of Good Works
Washington, D.C. 20006
Example 1
SECRET
June 27, 2012
1. (U) This paragraph contains the weight of widget A.
2. (U) This paragraph contains the height of widget A.
3. (U) This paragraph contains the length of widget A.
Classified by: John E. Doe, Chief, Division 5
Reason: 1.4(a)
Declassify on: 20XX1231
Classified by compilation: The weight of widget A when
combined with or used in association with the height
of widget A, is classified SECRET. In all other instances
the individual portions or combinations of portions are
unclassified.
SECRET
Department of Good Works
Washington, D.C. 20006
Example 2
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All classification markings within this publication are unclassified and are for illustrative purposes only.
24
SECTION 3 - ATOMIC ENERGY INFORMATION
SECRET//RESTRICTED DATA-N
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR DEPSECDEF
SUBJECT: (U) Atomic Energy Act of 1954
1. (S//RD) Documents containing “Restricted Data” or “Formerly Restricted Data,” as dened by
the Atomic Energy Act of 1954, should have abbreviated markings (“RD” or “FRD”) included with
the classication marking (S//RD).
a. (S//FRD) This paragraph contains “Secret” Formerly Restricted Data only. RD
markings will not be applied.
b. (S//RD-N) Critical Nuclear Weapon Design Information (CNWDI) shall be marked with
an “N” inside the parentheses following the RD portion marking.
2. (U) Special warning notices are applied to RD, FRD, and CNWDI. If a document combines both
as depicted here, both warning notices are required. No declassication instructions are used *.
Albert Strangelove
USD(I&S)
Classified by:
John E. Doe, Division Chief
Derived from:
SCG title and date
Declassify on: Not applicable to RD/FRD portions. See source list for NSI portions.
July 28, 20XX
RESTRICTED DATA
This document contains Restricted Data as
dened in the Atomic Energy Act of 1954.
Unauthorized disclosure subject to
administrative and criminal sanctions.
SECRET//RESTRICTED DATA-N
Critical Nuclear Weapon Design Information
DOD Directive 5210.2 Applies
WARNING NOTICES:
RESTRICTED DATA
This document contains Restricted Data as dened in the Atomic Energy Act of 1954. Unauthorized
disclosure is subject to administrative and criminal sanctions. RD and FRD are specically excluded
from the provisions of the executive order, stating such information shall be handled, protected,
classied, downgraded, and declassied as required by provisions of the Atomic Energy Act of 1954,
as amended, and regulations issued under that ACT.
Only the Department of Energy (DoE) may originally classify or declassify RD.
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25
WARNING NOTICES:
FORMERLY RESTRICTED DATA
Unauthorized disclosure subject to administrative and criminal sanctions. Handle as Restricted Data
in foreign dissemination. Section 144b, Atomic Energy Act of 1954.
CNWDI
Critical Nuclear Weapon Design Information – DOD Instruction 5210.02 applies. CNWDI is the DOD
designation for TOP SECRET RD or SECRET RD weapons data that reveals the theory of operation
or design of the components of a thermonuclear or ssion bomb, warhead, demolition munitions, or
test device. The designation CNWDI specically excludes information concerning arming, fusing, and
ring systems; limited-life components; and total contained quantities of ssionable, fusionable, and
high-explosive materials by type.
COMMINGLING RD AND FRD WITH NSI
To the extent practicable, the commingling in the same document of RD or FRD with information
classied under the Order should be avoided. When it is not practicable to avoid such commingling, the
marking requirements in the Order and the Directive, as well as the marking requirements in 10 C.F.R.
Part 1045, Nuclear Classication and Declassication, must be followed. For commingled documents,
the “Declassify on” line shall not include a declassication date or event and shall instead be annotated
with “Not Applicable (or N/A) to RD/FRD portions” and “See source list for NSI portions.” The source
list, as described in 32 C.F.R. Part 2001.22(c)(1)(ii), shall include the declassication instruction for
each of the source documents classied under the Order and shall not appear on the front page of the
document.
*E.O. 13526 does not apply to “Restricted Data” or “Formerly Restricted Data”. DOD does not
originate RD or FRD; therefore, all documents should reect on the “Declassify On” line “N/A to
RD/FRD portions” and “See source list for NSI portions”.
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All classification markings within this publication are unclassified and are for illustrative purposes only.
26
SECTION 4 - SPECIAL ACCESS PROGRAMS
Special Access Programs (SAPs) are established in accordance with DOD Directive 5205.07, Special
Access Program (SAP) policy. SAPs are created only when absolutely necessary to protect the Nation’s
most sensitive and critical information or when required by statutes. Establishment must be consistent
with law, policy, and regulations and be based on a determination that the threat and/or vulnerability
(e.g., sensitivity or value of the information) warrants enhanced protection.
Hard copy documents containing Top Secret SAP information shall include the following in the lower
right corner of each accountable page: the assigned document control number (DCN), page number
and total page count, and the copy number and total copies made.
SAPs established pursuant to DOD Directive 5205.07 have been granted a File Series Exemption
(FSE) in accordance with the Assistant to the President for National Security Aairs Memorandum,
dated March 30, 2005. The memorandum exempts the le series of records related to DOD SAPs
from automatic declassication at 25 years. SAP documents, dated prior to January 1, 1982, shall be
declassied on December 31, 2021. SAP documents dated after January 1, 1982, shall be declassied
on the 50th year after the date of origin of the document, unless it is reviewed and submitted
for another extension.
Any DOD program or activity employing enhanced security measures exceeding those normally
required for collateral information at the same classication level must be established, approved, and
managed as a DOD SAP. Examples of such enhanced security measures include:
• Use of any special terminology, including code words, other than an unclassied nickname, to
identify or control information dissemination
• Personnel security investigative or adjudicative requirements more stringent than those required
for a comparable level of classied information
• Specialized non-disclosure agreements
• Exclusion of a classied contract (use of a carve-out); or
• A central billet system to control the number of personnel authorized access
Some DOD programs which operate under the above enhanced procedures are considered to be
SAPs, including: (I) Programs managed under special delegation authorities previously approved by the
Secretary of Defense or Deputy Secretary of Defense; (II) Programs sponsored by other departments or
agencies but for which DOD participants manage internal DOD security controls (e.g., DOD-managed
subcompartments of larger, non-DOD SAPs, etc.); and, (III) Programs conducted in support of, or in
cooperation with, other departments, agencies, branches of government, or other governments. SAPs
may only be approved by the Secretary of Defense or the Deputy Secretary of Defense.
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All classification markings within this publication are unclassified and are for illustrative purposes only.
27
To dierentiate a nickname from a code word, remember that:
• A nickname is a combination of two unassociated and unclassied words (e.g., TWISTED FEATHER,
etc.)
• Nicknames are normally typed in ALL CAPS
• A code word is a single word assigned a classied meaning by appropriate authority
• The code word is classied Condential or higher
• All nicknames and code words are issued through the DOD Components (usually SAP channels) and
strictly controlled
The unclassied examples on the following two pages depict common markings for SAP documents.
The examples are for illustrative use only. The format for markings should be adjusted to accommodate
software applications and production eciency. For instance, the examples show the overall
classication and nickname/code word in the header and the overall classication and special access
requirement in the footer. For more information on marking SAP documents, consult DOD Manual
5205.07, Vol. 4, Special Access Program Security Manual: Marking and the CDSE Special Access
Programs (SAP) Markings Short.
SAP NICKNAMES
SAPs use nicknames for control of dissemination and “need-to-know.” Nicknames are assigned to the
program when the SAP is approved.
Highest classication, SPECIAL
ACCESS REQUIRED or SAR, program
nickname and the dissemination
control (if assigned) are
conspicuously placed at the top and
bottom.
Paragraph markings (portion
marked) in SAP documents should
contain the level of classication
within the paragraph, and be
followed by “SAR” and the programs
assigned program identier (PID).
TOP SECRET//SPECIAL ACCESS REQUIRED-TWISTED FEATHER
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR SPECIAL ACCESS PROGRAM CENTRAL OFFICES
SUBJECT: (U) Identification and Marking of Classified Documents
1. (U) This paragraph contains “Unclassied” information.
2. (C) This paragraph contains non-SAP national security information.
3. (TS//SAR-TF) This paragraph contains TOP SECRET information related to the special
access program TWISTED FEATHER. Portion markings are the same as previously described
in this marking guide. The exceptions are the addition of the SAR acronym and nickname
digraph following the TS designation.
Maxwell Smart
Director, Special Programs
USD(I&S)Attachment:
Classified by: Maxwell Smart, Director, USD(I&S)
Reason: 1.4(g)
Declassify on: 20521231 (per FSE dated 20050330)
DCN: SAPCO/0001-01
Page 1 of 1
Copy 1 of 2
July 28 20XX
TOP SECRET//SPECIAL ACCESS REQUIRED-TWISTED FEATHER
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All classification markings within this publication are unclassified and are for illustrative purposes only.
28
A SAP program identier (PID) is a two and three letter designator given to each SAP. In this example,
“TF” shown here represents the nickname “TWISTED FEATHER.” A nickname, code word, or PID may be
substituted for the term “SPECIAL ACCESS” Channels. Refer to the SAP Security Procedure Guide for
instructions.
SAP CODE WORDS
In addition to nicknames, SAPs also use code words for control of dissemination and a “need-to-know.”
A code word is a single word with a classied meaning. Code words, like nicknames, are assigned to the
program when the SAP is approved.
TOP SECRET//SAR-CODE WORD
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR SPECIAL ACCESS PROGRAM CENTRAL OFFICES
SUBJECT: (U) Identification and Marking of Classified Documents
1. (U) This paragraph contains “Unclassied” information.
2. (TS//SAR-CWD) This paragraph reects TOP SECRET information controlled in the CODE
WORD classied program.
Maxwell Smart
Director, Special Programs
USD(I&S)Attachment:
Classified by: Maxwell Smart, Director, USD(I&S)
Derived From: CODE WORD SCG, dated YYYYMMDD
Declassify on: 20521231 (per FSE dated 20XX0330)
July 28, 20XX
TOP SECRET//SAR-CODE WORD
DCN: SAPCO/0001-02
Page 1 of 1
Copy 1 of 2
Highest classication,
SPECIAL ACCESS
REQUIRED or SAR, and
program code word
are conspicuously
placed at the top and
bottom.
Paragraph markings in
SAP documents should
contain the level of
classication within
the paragraph and
be followed by “SAR”
and the SAP program
identier.
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All classification markings within this publication are unclassified and are for illustrative purposes only.
29
SECTION 5 - INTELLIGENCE INFORMATION
Additional security controls and markings are established for intelligence information. The DOD
Components of the Intelligence Community (IC) and personnel working with intelligence information
shall refer to IC Directive (ICD) 710, “Classication and Control Markings System,” issued by the Oce of
the Director of National Intelligence (ODNI); Special Security Center (SSC) Controlled Access Program
Coordination Oce (CAPCO); and the CAPCO Register and Manual for guidance on marking and
dissemination of classied and unclassied intelligence information.
The chart on the next page will
identify several of the most common
intelligence caveat designations.
TOP SECRET//NOFORN/ORCON
OFFICE OF THE SECRETARY OF DEFENSE
WASHINGTON, DC
MEMORANDUM FOR DIRECTOR, DEFENSE INTELLIGENCE AGENCY
SUBJECT: (U) Marking of Classified Intelligence Information
1. (S//NF) This paragraph contains “Secret” “No Foreign Dissemination” information.
Portion markings are the same as previously described in this marking guide. The
exception is the addition of the intelligence marking program identier (PID) following
the S designation.
2. (TS//OC) This paragraph contains “Top Secret” “Originator Controlled” information.
Portion markings are the same as previously described in this marking guide. The exception
is the addition of the intelligence marking program identier (PID) following the TS
designation.
3. (U) Conspicuously mark the top and bottom of the document with the overall
classication.
James Bond
Director, Intelligence Programs
USD(I&S)
Classified by: James Bond, Director USD(I&S)
Derived from: DNI SCG 259, 5/7/04
Declassify on: 20XX1231
July 28, 20XX
TOP SECRET//NOFORN/ORCON
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All classification markings within this publication are unclassified and are for illustrative purposes only.
30
DESIGNATION ABBREVIATION PID
DISSEMINATION AND EXTRACTION OF INFORMATION CONTROLLED
BY ORIGINATOR
This marking is used only on classied intelligence that clearly identies or would
reasonably permit ready identication of intelligence sources or methods that
are particularly susceptible to countermeasures that would nullify or measurably
reduce their eectiveness. It is used to enable the originator to maintain continuing
knowledge and supervision of distribution of the intelligence beyond its original
dissemination.
ORCON OC
PROPRIETARY INFORMATION INVOLVED
This marking is used with, or without, a security classication level marking, to
identify information provided by a commercial rm or private source under an
expressed or implied understanding that the information shall be protected as
a trade secret or proprietary data believed to have actual or potential value. The
marking may not be used on DOD documents except where those documents
use IC information so marked. This marking may be used on U.S. Government
Proprietary data only when the U.S. Government proprietary information can
provide a contractor(s) an unfair advantage such as U.S. Government budget or
nancial information.
PROPIN PR
NOT RELEASABLE TO FOREIGN NATIONALS
This marking is used to identify intelligence that falls under the criteria of
DCID 6/6, “Foreign Disclosure,” that the originator has determined may not
be disclosed or released, in any form, to foreign governments, international
organizations, coalition partners, foreign nationals, or immigrant aliens without
originator approval. This marking is not authorized for use in conjunction with the
“AUTHORIZED FOR RELEASE TO” (“REL TO”) marking. NOFORN may also be applied
when warranted to unclassied intelligence that has been properly determined
to be categorized as Controlled Unclassied Information (CUI) consistent with ICD
710.
NOFORN NF
AUTHORIZED FOR RELEASE TO (name of country(ies)/international
organization)
Within the DOD, the REL TO control marking is authorized for use on ALL classied
Military or Defense CUI. REL TO identies classied information that has been
determined in accordance with established foreign disclosure processes to be
releasable, or that has been released through established foreign disclosure
procedures and channels, to the foreign country(ies) and/or international
organization(s) indicated. REL TO shall not be used with NOFORN or NODIS in
the banner line. REL TO may also be applied, when warranted, to unclassied
intelligence that has been properly determined to be categorized as Controlled
Unclassied Information (CUI) consistent with ICD 710.
REL TO
CONTROLLED IMAGERY
This control marking is used on Secret or above and is used to protect sources
and analytic methods associated with the geospatial intelligence discipline that
are particularly vulnerable to countermeasures, and if disclosed or released could
negate or measurably reduce the eectiveness of those methodologies.
IMCON
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All classification markings within this publication are unclassified and are for illustrative purposes only.
31
SECTION 6 - CONTROLLED UNCLASSIFIED INFORMATION (CUI)
CUI is unclassified information that requires safeguarding or dissemination controls, pursuant to and
consistent with applicable law, regulations, and Government-wide policies.
It is important to note classified documents containing CUI do not include CUI in the overall
classification banner since the document’s overall classification adequately protects it. However,
portions or pages of a classified document that contain only CUI will be marked in a manner that
identifies the CUI content.
There will be an acknowledgment added to the warning box on the first page of multi-page documents
to alert readers to the presence of CUI in a classified DOD document as shown below.
The first page or cover of any document or material containing CUI, including a document with
commingled classified information, will include a CUI Designation Indicator or DI block as shown in
Figure 2. This CUI DI block is similar to the classification authority block or CAB required on CNSI
documents and materials. Minimum marking requirements in accordance with DODI 5200.48 also
include the acronym "CUI" in the banner and footer.
Refer to DODM 5200.01, Vol. 2, DODI 5200.48, and CFR Part 2002 for additional guidance on Marking
CUI. Refer to DODI 5200.48 and DODI 5230.24 for specific guidance on Dissemination Controls and use
of Distribution Statements on CUI Technical Information or CTI.
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All classification markings within this publication are unclassified and are for illustrative purposes only.
32
SECTION 7 - MARKING INFORMATION OTHER THAN
DOCUMENTS
CHARTS, MAPS, EQUIPMENT, DRAWINGS, AND PHOTOGRAPHS
When classied information is contained in computer or other electronic media, audiovisual media,
chart and maps, or other media (including hardware, equipment, and facilities) not commonly thought
of as documents, the requirement remains to identify as clearly as possible the information that
requires protection, the level of protection required, and its duration. The main concern is that holders
and users of the material are clearly notied of the presence of classied information. If it is not feasible
to mark such information, an explanatory statement shall be included on or with the information
that explains exactly what information is and is not classied. Other markings normally required
for classied documents shall also be made available, either on the item or in documentation that
accompanies it.
Mark blueprints, engineering drawings, charts,
maps, and similar items not contained in a
classied document with the appropriate
overall classication and dissemination control
markings. The classication marking shall be
unabbreviated, conspicuous, and applied top and
bottom, if possible, in such a manner as to ensure
reproduction on any copies. The legend or title
shall also be portion marked to show classication
of the legend or title. If the blueprints, maps, and
other items are large enough that they are likely
to be rolled or folded, the classication markings
shall be placed to be visible when the item is
rolled or folded.
(Note: “CONFIDENTIAL” is not part of the
Classication Authority Block)
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All classification markings within this publication are unclassified and are for illustrative purposes only.
33
HARDWARE AND EQUIPMENT
If the required information is stored
in a readily accessible format on the
device, it does not have to be
marked on the outside of the
device. As an example, if classied
les or documents prepared on an
information technology (IT) system
are stored on a DVD or compact
disc, and each le bears its own
declassication instructions, the disc
does not need to be marked with
declassication instructions. This is
true with respect to most removable
media containing classied text
les and documents, even though a
few of them may not have all of the
prescribed markings. If the required
information is not stored in a readily
accessible format on the device, it
shall be marked on the outside of
the device (normally with a sticker
or tag) or placed on documents kept
with the device.
Place the appropriate classication label on the
following devices:
* CPU
* Exernal or removable hard drives
* Printers (and ink cartridges)
* Any other external peripherals
(i.e switch box, scanner)
* External storage devices (e.g., CD, ash drive)
Output Devices
Mass Storage
Device
Input Devices
System
Unit
This medium is
SECRET
U.S. Government Property
Protect it from unauthorized
disclosure in compliance with
applicable executive orders,
statutes, and regulations.
SF707 (1-87)
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All classification markings within this publication are unclassified and are for illustrative purposes only.
34
CONTINUOUS FORM
(FAN FOLDED) DOCUMENTS
Due to the volume and nature of
printed products of Automated
Information Systems (AIS), there are
special provisions for marking some
of these types of documents. These
provisions include classication
markings on interior pages of fan
folded printouts. The AIS equipment
may apply these markings even
though they may not meet the
normal test of being conspicuous.
Special control notices,
identication of classication
sources, and downgrading and
declassication instructions must
either be marked on the face of
the document or be placed on a
separate sheet of paper attached to
the front of the document.
ROLLED DOCUMENTS
If the blueprints, maps and other
items are large enough that they
are likely to be rolled or folded,
classication markings must be
placed to be visible when the item is
rolled or folded.
SECRET
SECRET
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All classification markings within this publication are unclassified and are for illustrative purposes only.
35
PHOTOGRAPHIC MEDIA
Slides must have markings on the slide cover and on the actual image, so when the slide is displayed on
screen, the classication is clearly identied. Applicable associated markings should be applied to the
lead slide.
Mark photographs and negatives with the overall classication and dissemination control markings
applicable to information they contain. Mark photographs on the face, if possible. If this cannot be
done, the classication and dissemination control markings may be placed on the reverse side. Place
other required markings on photographs along with the classication marking, or include them in
accompanying documentation. Digital photographs may be edited to overlay markings on the face of
the photograph.
Mark roll lm negatives and positives and other lm containing classied information with their overall
classication and any dissemination control markings. These markings shall be placed on the lm itself,
if possible, and on the canister, if one is used. If placed on the lm itself, the marking shall be placed at
both the beginning and end of the roll.
Mark slides and transparencies with the overall classication and any control markings on the image
area of the item and also on the border, holder, or frame. Place other required security markings
on the rst slide or transparency in a set in the image area; on the border, holder, or frame; or in
documentation accompanying the item. These additional markings are not needed on the other slides
or transparencies; however, slides or transparencies that are permanently removed from a set shall be
marked as a separate document. Information on the image area of each slide or transparency shall be
portion marked.
a. Digital Video Discs (DVDs), Video Tapes, Motion Picture Film, and Web Videos. Mark DVDs, video
tapes, motion picture lms and web videos with their classication and any control markings at
the beginning and end of the presentation (i.e., the played or projected portion). Other required
security markings shall be placed at the beginning of the presentation. Discs, reels, and cassettes
shall be marked with the overall classication of the item. When stored in a container, the container
shall be marked with the overall classication, applicable dissemination control markings, and other
required markings.
b. Sound Recordings. Place an audible statement of overall classication and dissemination control
requirements at the beginning and end of sound recordings. Reels or cassettes shall be marked with
the overall classication and any required dissemination control markings and stored appropriately.
When stored in a container, the container shall be marked with the overall classication, applicable
dissemination control markings, and other required markings.
c. Microlm, Microche, and Similar Microform Media. Mark microlm, microche, and similar
microform media with their overall classication and applicable control markings in the image area
that can be read or copied. Such media shall have this marking applied so it is visible to the unaided
eye. Other required security markings shall be placed on the item or included in accompanying
documentation. Any containers shall contain all required markings, except no markings are
required if the container is transparent and markings on the media itself are clearly visible.
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36
PHOTOGRAPHIC MEDIA MARKING EXAMPLES
Classied By: John Smith, Dir, ABC
Agency
Derived from: ABC Memo, 2008010
Suj: Pictures
Declassify on: 20XX0101
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All classification markings within this publication are unclassified and are for illustrative purposes only.
37
COMPUTER MEDIA
Basic document markings apply to all media.
Computer discs must reect the highest level of
classication contained on the discs. Standard
labels
should be used for all levels of classication.
• SF-706 - TOP SECRET
• SF-707 - SECRET
• SF-708 - CONFIDENTIAL
• SF-710 - UNCLASSIFIED
If not otherwise marked, the SF classication
labels listed above should be used to identify the
highest level of classied information stored on IT
systems and removable electronic storage media.
These labels may also be used on other forms of
property to clearly identify the classication level
of the information contained in or on that item,
when appropriate.
In an environment in which both classied and
unclassied information is processed or stored,
the SF-710 UNCLASSIFIED label shall be used
to identify unclassied media or equipment.
There is no requirement to use a SF-710 label in
environments where no classied information is
created or used.
If the information's classification level on the
medium changes (i.e., the information is
declassified, downgraded, or upgraded), the
label shall be wholly covered by the appropriate
label for the new classification level.
If physical marking of the medium containing
classified information is not possible, then
identifying the classified information must be
accomplished by other means (e.g., indelible
marker, etc.).
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38
DISTRIBUTION STATEMENTS - TECHNICAL INFORMATION
DOD INSTRUCTION 5230.24, DISTRIBUTION STATEMENTS ON DOD TECHNICAL NFORMATION
https://www.esd.whs.mil/Portals/54/Documents/DD/issuances/dodi/523024p.pdf?ver=JiZUVfNZrPKmcRMim_UnHg%3d%3d
Table 1. Distribution Statements and Their Corresponding Categories for Use
DISTRIBUTION STATEMENT A. Approved for public release: distribution is unlimited.
DISTRIBUTION STATEMENT B. Distribution authorized to U.S. Government agencies [category]
[date of determination]. Other requests for this document must be referred to [controlling DoD office].
DISTRIBUTION STATEMENT C. Distribution authorized to U.S. Government agencies and their
contractors [category] [date of determination]. Other requests for this document must be referred to
[controlling DoD office].
DISTRIBUTION STATEMENT D. Distribution authorized to Department of Defense and U.S. DoD
contractors only [category] [date of determination]. Other requests for this document must be referred to
[controlling DoD office].
DISTRIBUTION STATEMENT E. Distribution authorized to DoD Components only [category] [date of
determination]. Other requests for this document must be referred to [controlling DoD office].
DISTRIBUTION STATEMENT F. Further distribution only as directed by [controlling DoD office]
[date of determination] or higher DoD authority.
REL TO. Information has been predetermined by the DoD controlling agency, in accordance with
established foreign disclosure policies, to be releasable through established foreign disclosure
procedures and channels, to the foreign country and international organization indicated.
CATEGORY A B C D E
PUBLIC RELEASE X
CTI X X X X
CONTRACTOR PERFORMANCE EVALUATION X X
CRITICAL TECHNOLOGY X X X X
DIRECT MILITARY SUPPORT X
EXPORT CONTROLLED X X X X
FOREIGN GOVERNMENT INFORMATION X X X X
IAs X X X X
OPERATIONS SECURITY X X
PATENTS AND INVENTIONS X X
PROPRIETARY BUSINESS INFORMATION X X
SBIR X X
SOFTWARE DOCUMENTATION X X X X
TEST AND EVALUATION X X
VULNERABILITY INFORMATION X X X X
*For further information regarding Distribution Statements and corresponding categories refer to DODI
5230.24; Section 4.2 Distribution Statements and Notices and Section 4.3 Defense Categories.
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39
DISTRIBUTION STATEMENTS - TECHNICAL INFORMATION
Building Compliant Distribution Statements
DOD Instruction 5230.24; Section 4: Distribution Statements For Use On Technical Information
provides guidance for constructing and using DOD approved distribution statements and their
accompanying reasons.
Paragraph 4.1b. Requires: "The wording of the distribution statements specified by this issuance
may not be modified to accommodate additional distribution concerns such as distribution to foreign
governments." Other markings may also be used.
Paragraph 4.1c. Shows the format: Distribution Statements B, C, D, and E are expressed in a standard
format consisting of information in this order:
1. Authorized Audience or Who Can Access
2. Reasons for Control or Why/Reason*
3. Date of Determination
4. Controlling Office or Releasing Authority
* More than one reason may apply and may be used in a distribution statement.
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40
APPENDIX A – REFERENCES
The following directives, instructions, and other publications describe DOD policy and requirements for
marking information and/or identifying policy constraints on the dissemination of information created
by or for DOD or under DOD’s control.
1. 10 CFR, Part 1045, Nuclear Classification and Declassification
2. 32 CFR, Parts 2001 and 2003, “Classified National Security Information; Final Rule”
3. 32 CFR, Part 2002 " Controlled Unclassified Information"
4. Executive Order 13526, “Classified National Security Information”
5. Executive Order 13556 "Controlled Unclassified Information"
6. National Archives and Records Administration Implementing Directive No. 1 to Executive Order
13526
7. Atomic Energy Act of 1954, As Amended
8. DOD Directive 5205.07 w/Ch 2, “Special Access Program (SAP) Policy”
9. DOD Instruction 5200.01 w/Ch 1, “DOD Information Security Program and Protection of Sensitive
Compartmented Information”
10. DOD Instruction 5200.48 Controlled Unclassified Information (CUI)
11. DOD Instruction 5210.2 w/Ch 1, “Access to and Dissemination of Restricted Data and Formerly
Restricted Data”
12. DOD Instruction 5230.24, “Distribution Statements on DOD Technical Information”
13. DOD Manual 5105.21, Vol. 1 w/Ch 1, “Sensitive Compartmented Information (SCI)
Administrative Security Manual: Administration of Information and Information Systems
Security”
14. DOD Manual 5200.01 Vol. 2 w/Ch 3, “DOD Information Security Program: Marking of Classified
Information”
15. DOD Manual 5205.07, Vol. 4 w/Ch 1, “Special Access Program (SAP) Security Manual: Marking”
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