355 - Security Classification Control (R)
MARC 21 Bibliographic - Concise
2008
This is an ARCHIVED VERSION of the
2008 electronic edition of the MARC 21 Concise
Formats. Please see loc.gov/marc/concise/
for the most up-to-date version of the electronic MARC 21
Concise Formats.
Specifics pertaining to the security classification
associated with the document, title, abstract, contents note,
and/or the author. In addition, it can contain handling
instructions and external dissemination information pertaining
to the dissemination of the document, title, abstract, contents
note, and author. The field may also contain downgrading or
declassification data, the name of the classification system,
and a country of origin code.
Indicators
First - Controlled element
0 - Document
1 - Title
2 - Abstract
3 - Contents note
4 - Author
5 - Record
8 - None of the above
Second - Undefined
# - Undefined
Subfield Codes
$a - Security classification (NR)
Security classification (e.g., Unclassified,
Secret, Confidential) associated with the
document, title, abstract, contents note, or author.
$b - Handling instructions (R)
Handling instructions, e.g., who internally in the
organization may handle or see the document, title,
abstract, contents note, or author.
$c - External dissemination information (R)
$d - Downgrading or declassification event (NR)
Data about the security classification, often a phrase
pertaining to downgrading or declassification, e.g.,
OADR (which stands for "Original Agency
Determination Required"). Dates relating to the downgrading
or declassification are recorded in subfields $g or $h.
$e - Classification system (NR)
Name of a security classification system, not necessarily
come from a controlled list.
$f - Country of origin code (NR)
Two- or three-character alphabetic MARC code indicating the
country of origin of the classification. Code from:
MARC Code
List for Countries.
$g - Downgrading date (NR)
Date pertaining to the downgrading of the document, title,
abstract, contents note, or author. Downgrading involves
changes to security classification, from a higher level to
lower level of classification.
$h - Declassification date (NR)
Date pertaining to the declassification of the document,
title, abstract, contents note, or author. Declassification
involves the removal of any security classification on an
item.
$j - Authorization (R)
Information that identifies by whose authority a change in
security classification was made. The subfield contains a
MARC code of the authorizing agency. See Appendix I:
Organization Code
Sources for a listing of sources used in MARC 21
records.
$8 - Field link and sequence number (R)
Examples
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355 |
0#$aUnclassified
$bFOUO |
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355 |
2#$aConfidential
$bNOFORN |
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355 |
1#$aSecret$bNOFORN
$bNOCONTRACT |
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355 |
0#$aSecret$bFRD
$cAS$d010101 |
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355 |
0#$aSecret$bNOFORN
$bWNINTEL$bNOCONTRACT
$dOADR |
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355 |
0#$aTop
Secret$cUS$cCA$fxxk |
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355 |
0#$aConfidential
$bNOCONTRACT$cUK
$g20281001 |
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355 |
0#$aSecret$bNOFORN
$h20230301 |
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355 |
0#$aSecret$bNOFORN
$h20230301$j<agency
identifier> |
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