355 - Security Classification Control (R)
MARC 21 Bibliographic - Concise
2007
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.
$8 - Field link and sequence number (R)
Examples
|
|
|
|
|
|
|
|
|
|
355 |
0#$aUnclassified$bFOUO
|
|
|
|
|
|
|
|
|
|
|
355 |
2#$aConfidential$bNOFORN
|
|
|
|
|
|
|
|
|
|
|
355 |
1#$aSecret$bNOFORN$bNOCONTRACT
|
|
|
|
|
|
|
|
|
|
|
355 |
0#$aSecret$bFRD$cAS$d010101
|
|
|
|
|
|
|
|
|
|
|
355 |
0#$aSecret$bNOFORN$bWNINTEL$bNOCONTRACT$dOADR
|
|
|
|
|
|
|
|
|
|
|
355 |
0#$aTop Secret$cUS$cCA$fxxk
|
|
|
|
|
|
|
|
|
|
|
355 |
0#$aConfidential$bNOCONTRACT$cUK$g20281001 |
|
|
|
|
|
|
|
|
|
|
355 |
0#$aSecret$bNOFORN$h20230301 |
|
|
|
|
|
|
|
|
|
|
355 |
0#$aSecret$bNOFORN$h20230301$j<agency identifier> |