MARC 21 Concise Holdings: Control Fields (001-008)


This is an ARCHIVED VERSION of the 2000 electronic edition of the MARC 21 Concise Formats. Please see www.loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.

Fields 001-008 contain record control numbers and other control and coded information that are used in processing separate MARC holdings records. Each control field is identified by a field tag in the Directory and contains either a single data element or a series of fixed-length data elements identified by relative character position. Variable control fields contain neither indicator positions nor subfield codes.

Information for Translators and Other Users
Items highlighted in red in the online format indicate changes made after the 1998 edition of the USMARC Concise Formats
was published (This publication included the 1989 base text, along with Updates No. 1 (April 1991) and No. 2 (July 1994) of
the USMARC Format for Holdings Data).


001 - CONTROL NUMBER (NR)

The system control number assigned to a separate holdings record. For interchange purposes, documentation of the structure of the control number and input conventions are provided to exchange partners by the organization initiating the interchange.
An organization receiving a separate holdings record may move the control number of the distributing system from field 001 to field 014 (Linkage Number) or to field 035 (System Control Number).

Examples


001

###86104385#

001

14919759

001

#####9007496

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003 - CONTROL NUMBER IDENTIFIER (NR)

The MARC code for the agency whose system control number is present in field 001 (Control Number). The source of the code is the MARC Code List for Organizations that is maintained by the Library of Congress. For Canadian organizations, the source of the code is Symbols and Interlibrary Loan Policies in Canada that is maintained by the National Library of Canada.

Whenever the number in field 001 is changed, agencies must assure that the MARC code in field 003 applies to the new number found in field 001.

Examples


003

DLC

003

OCoLC

003

DNLM

003

CaOONL

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004 - CONTROL NUMBER FOR RELATED BIBLIOGRAPHIC RECORD (NR)

The system control number of the MARC bibliographic record for which a separate holdings record was created.

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005 - DATE AND TIME OF LATEST TRANSACTION (NR)

Sixteen characters that indicate the date and time of the latest record transaction and serve as a version identifier for the record. They are recorded according to Representation of Dates and Times (ISO 8601). The date requires 8 numeric characters in the pattern yyyymmdd. The time requires 8 numeric characters in the in the pattern hhmmss.f, expressed in terms of the 24-hour (00-23) clock.

Example


005

19890901141236.0

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007 - PHYSICAL DESCRIPTION FIXED FIELD (NR)

Coded, copy-specific physical characteristics of the bibliographic item for which the holdings are recorded. See the description of field 007 in the MARC 21 Concise Format for Bibliographic Data, for the content designators defined for this field. The Category of material code (007/00) may be described textually in field 842 (Textual Physical Form Designator).

Examples


007

aj|canzn

007

cj|na#

007

db|cen

007

go|cjbff#

007

he|bmb024baca

007

kl|ao#

007

mr|caaadmnartauac198606

007

sd|bsmennmplud

007

ta

007

td

007

vf|caahos

007

qu

007

zm

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008 - FIXED-LENGTH DATA ELEMENTS (NR)

Thirty-two character positions (00-31) that contain data elements that provide coded information about the record. Each defined character position must contain either a defined code or a fill character ( | ). The fill character is used when no attempt is made to supply a defined code for a specific character position. When holdings information is embedded in a MARC bibliographic record, this information may be contained in field 841 $b (Holdings Coded Data Values, Fixed-length data elements).

Character positions

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