Leader (NR)


MARC 21 Holdings - Concise
2008

This is an ARCHIVED VERSION of the 2009/2010 electronic edition of the MARC 21 Concise Formats.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.

Fixed field that comprises the first 24 character positions (00-23) of each record and provides information for the procesing of the record.

Character Positions

00-04 - Record length
Computer-generated, five-character number equal to the length of the entire record, including itself and the record terminator. The number is right justified and each unused position contains a zero.
05 - Record status
Relationship of the record to a file.
c - Corrected or revised
d - Deleted
n - New
06 - Type of record
Characteristics and definitions of the components of the record. When holdings information is embedded in a MARC bibliographic record, the Leader/06 code may be contained in field 841 $a (Holdings Coded Data Values, Type of record).
u - Unknown
v - Multipart item holdings
x - Single-part item holdings
y - Serial item holdings
07-08 - Undefined character positions
Both are undefined; each contains a blank (#).
09 - Character coding scheme
Character coding scheme used in the record.
# - MARC-8
a - UCS/Unicode
10 - Indicator count
Computer-generated number 2 that indicates the number of indicators occurring in each variable data field.
11 - Subfield code length
Computer-generated number 2 that indicates the number of character positions used for each subfield code in a variable data field.
12-16 - Base address of data
Computer-generated, five-character numeric string that specifies the first character position of the first variable control field in a record. The number is right justified and each unused position contains a zero.
17 - Encoding level
Level-of-specificity of the holdings statement. Codes 1, 2, 3, and 4 reflect the requirements of Levels 1, 2, 3, and 4 of Holdings Statements for Bibliographic Items (ANSI/NISO Z39.71) (formerly Serial Holdings Statements (ANSI/NISO Z39.44)) and Holdings Statements for Non-Serial Items (ANSI/NISO Z39.57)) and codes 1, 2, and 3 reflect the requirements of Levels 1, 2, and 3 of Holdings Statements-Summary Level (ISO 10324). The MARC content designators given in the description of each holdings level are the ones required by Z39.71. Optional data elements for each level are not mentioned here; they are given in each standard. A single-part item holdings statement is normally recorded at level 1. A multipart or serial item holdings statement may be recorded at any level.
When holdings information is embedded in a MARC bibliographic record, this information may be contained in field 841 (Holdings Coded Data Values), subfield ‡e (Encoding level), which is also embedded in the bibliographic record.
1 - Holdings level 1
2 - Holdings level 2
3 - Holdings level 3
4 - Holdings level 4
5 - Holdings level 4 with piece designation
Holdings statement includes physical piece designation that is contained in subfield ‡p (Piece designation) of field 852 (Location, one of the 863-865 Enumeration and Chronology fields, or an 876-878 Item Information field, or in subfield ‡a (Textual holdings) in one of the 866-868 Textual Holdings fields.
m - Mixed level
Holdings are recorded at more than one level, for example, when the levels for retrospective and current holdings differ. The value in the first indicator position (Field encoding level) of the applicable 863-865 Enumeration and Chronology and 866-868 Textual Holdings fields indicate the level for each holdings data field.
u - Unknown
z - Other level
18 - Item information in record
Whether item information is in the record, contained in one or more occurrences of fields 876-878 (Item Information fields).
i - Item information
n - No item information
19 - Undefined character position
Undefined and contains a blank (#).
20 - Length of the length-of-field portion
Always a 4.
21 - Length of the starting-character-position portion
Always a 5.
22 - Length of the implementation-defined portion
Always a 0.
23 - Undefined
Undefined; always contains a 0.

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