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082  Dewey Decimal Classification Number (R)

Input Standards

Required if applicable/Optional
1st Indicator  Type of edition
blank character No edition information recorded
0 Full edition
1 Abridged edition
7 Other edition specified in subfield ǂ2
2nd Indicator  Source of classification number
blank character No information provided
0 Assigned by LC
4 Assigned by agency other than LC
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa Classification number (R) Mandatory/Mandatory
ǂb Item number (NR) Optional/Optional
ǂm Standard or optional designation (NR) Mandatory/Mandatory
ǂq Assigning agency (NR) Optional/Optional
ǂ2 Edition number (NR) Required if applicable/Required if applicable
ǂ8 Field link and sequence number (R) Optional/Optional

Definition

The Dewey Decimal call number assigned by the Library of Congress (LC), Library and Archives Canada (LAC), or other national agencies. Use field 082 or field 092 for Dewey numbers assigned by agencies other than LC, LAC, etc.

Use field 082 if you are transcribing Dewey numbers from LC copy or Canadian Cataloging-in-Publication (CIP) and to identify the edition of the Dewey Decimal Classification (DDC) from which the class number was derived.

If you assign a Dewey Decimal Classification number according to the DDC schedules or to LC practice, use field 082 or field 092 with 2nd indicator 4. If the classification portion of your number does not conform to the DDC schedules, use field 099.

Guidelines

 
Transcribing Dewey numbers from LC copy

Use the following guidelines for entering Dewey number from LC copy.

Segmentation (prime) marks. Since 1967 LC has divided Dewey class numbers into as many as three segments. LC uses prime marks ( ' ) to separate the segments. The prime marks indicate logical places to shorten a long class number if a library does not want the complete number. If you are transcribing a Dewey class number from LC copy, enter a slash ( / ) instead of a prime mark.

As of September 1, 2005, LC discontinued the practice of assigning segmentation marks (also referred to as prime marks or slash marks) to indicate the beginning of standard subdivisions in DDC numbers. The assignment of segmentation marks to indicate the end of abridged numbers, however, will continue. This means that any given DDC number will contain a maximum of one segmentation mark, and every segmentation mark can safely be interpreted as indicating the end of an abridged number. For more information see: Segmentation Marks in Dewey Numbers (http://www.oclc.org/dewey/discussion/papers/SegmentationMarks.htm) and Representation of DDC in MARC 21 Bibliographic Format: An Update (http://www.oclc.org/dewey/news/conferences/2009MARC21.ppt).

Dewey number on LC copy Enter
370.19'342 370.19/342

Juvenile works. For works intended for a juvenile audience, a lowercase j is added as a prefix. The j prefix is not added to DDC numbers in records for juvenile textbooks.

Dewey number on LC copy Enter
j574 j574

Juvenile works with [E] or [Fic]. For some juvenile works, LC copy has [E] or [Fic] instead of a Dewey class number. Use field 082 for these designations, including the brackets.

Dewey number on LC copy Enter
[E] [E]
[Fic] [Fic]

Dewey numbers followed by 92 or 920. Use a second subfield ǂa for the 92 or 920.

Dewey number on LC copy Enter
658.404 92 658.404 ǂa 92

Uppercase B in post-1971 numbers. Since January 1971, LC has used an uppercase B to identify works as primarily biographical. If LC copy includes a Dewey number followed by B enclosed in parentheses or brackets, use a second subfield ǂa for the B. Do not enter the parentheses or brackets.

Dewey number on LC copy Enter
942.082 [B] 942.082 ǂa B

LC assigned Dewey numbers according to both the 14th and the 15th editions of the Dewey schedules. From January 1952-November 1958, LC added an asterisk before numbers based on the 15th edition. If you are transcribing such a number, move the asterisk to the end of the number and add subfield ǂ2 15.

If LC copy has two Dewey numbers and one is preceded by an asterisk, use the first subfield ǂa for the number without the asterisk. Use a second subfield ǂa for the other number and move the asterisk to the end of the number.

Dewey number on LC copy Enter
*657.6 657.6* ǂ2 15
*735.29 735.42 735.42 ǂa 735.29*

Series numbers. To indicate a series number, LC uses a lowercase s following a Dewey number. If you are transcribing such a number, enter the number, one space, and the lowercase s.

Dewey number on LC copy Enter
081s 081 s

Parentheses indicating Dewey numbers assigned to a series. At one time, LC used parentheses to indicate a Dewey number assigned to the series. If you are transcribing such a number, do not enter the parentheses. Enter the number, one space, and a lowercase s.

Dewey number on LC copy Enter
(015.73) 015.73 s

Two Dewey numbers: one in parentheses, one not. If the cataloging is for a serial publication, do not enter the number outside the parentheses. Enter the other number, according to current practice for designating numbers assigned to series. Do not enter the parentheses. Enter the number, one space, and a lowercase s.

Dewey number on LC copy Enter
(015.73) 015.791 015.73 s

If the cataloging is for a nonserial publication, do not enter the number enclosed in parentheses. Enter only the other number.

Dewey number on LC copy Enter
(015.73) 015.791 015.791

Dewey numbers with minus signs. If LC preceded the Dewey number with a minus sign ( - ), do not enter that number. Some LC copy includes both a "minus" Dewey number and a Dewey number enclosed in parentheses. Do not enter the "minus" number. Enter the other number according to current practice for designating numbers assigned to series. Do not enter the parentheses. Enter the number, a blank space, and a lowercase s.

Dewey number on LC copy Enter
-222.14 [Do not enter such numbers]
-222.14 (927.5) 927.5 s

Dewey numbers in brackets. A Dewey number in brackets is an alternative classification number. If LC copy has one Dewey number enclosed in brackets, enter the number with brackets. If LC copy has two Dewey numbers, and one is bracketed, use the first subfield ǂa for the unbracketed number. Use a second subfield ǂa for the bracketed number.

Dewey number on LC copy Enter
[320.9777] [320.9777]
[016.3584] 012 012 ǂa [016.3584]

Dewey number followed by lowercase s and a second number in brackets. Enter the first Dewey number according to current practice for numbers assigned to series. Enter the number, one space, and a lowercase s. Use a second subfield ǂa for the bracketed number. Enter the brackets.

Dewey number on LC copy Enter
081s [370.19'342] 081 s ǂa [370.19/342]
Canadian CIP

If you are transcribing Canadian CIP, use field 082 for the Dewey class number assigned by LAC. Enter a C before the class number.

Dewey on Canadian CIP copy Enter
364'.971 C364/.971

1st Indicator

Type of edition. Indicates the edition from which the Dewey Decimal Classification is taken. Use subfield ǂ2 for the actual edition number.

 
blank character

No edition information recorded. Obsolete. Do not use.

 
0

Full edition. The class number was taken from the full edition.

 
1

Abridged edition. The class number was taken from the abridged edition.

 
7

Other edition specified in subfield ǂ2. The edition is specified in subfield ǂ2 (Edition number).

2nd Indicator

Source of classification number. The source of the classification number.

 
blank character

No information provided. No information is provided about the source of the class number.

 
0

Assigned by LC. The source of the class number is the Library of Congress.

 
4

Assigned by agency other than LC. The source of the class number is an organization other than the Library of Congress.

Subfields

 
ǂa Classification number

The classification number portion of the call number.

082 0 0 589.3
ǂb Item number

The item number portion of the call number.

082 0 4 615./321 ǂb Wor
ǂm Standard or optional designation

Designates whether the classification number contained in the field is from the standard or optional part of the schedules or tables of the scheme identified by the first indicator (Type of edition) and by subfield ǂ2 (Edition number). The following codes are used: a (standard) and b (optional).

Standard or optional designation: If subfield ǂm is present, only one subfield ǂa should be coded, unless the value in subfield ǂm applies to all numbers in repeated occurrences of subfield ǂa. Otherwise, the field is repeated.

082 0 0 345.73/0772 ǂ2 20 ǂm a
082 0 0 347.305772 ǂ2 20 ǂm b
ǂq Assigning agency

The MARC organization code of the institution that assigned the classification number. See MARC Code List for Organizations (http://www.loc.gov/marc/organizations/orgshome.html).

082 0 4 004 ǂ2 22/ger ǂq DE-101b
082 7 4 839.82 ǂ2 5/nor ǂq NO-OsNB
ǂ2 Edition number

The edition number.

082 0 0 888/.01/08 ǂ2 20
082 0 0 345.55/700/924 ǂa B ǂa 920 ǂ2 20
082 1 0 616.5 ǂ2 11
ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

This page last revised: August 19, 2016