Contents Fixed field Access points 0xx 1xx 2xx 3xx 4xx 5xx 6xx 7xx 8xx 9xx Control subfields

Fixed Field

Fixed Field Introduction

Fixed field

The OCLC Fixed Field consists of elements of the MARC 21 Bibliographic Leader and field 008, in addition to control fields 001 and 005. The Fixed Field may be displayed as a single area with mnemonic labels for each element or as a separate variable field in Connexion client and WorldShare Record Manager. These cataloger-chosen options allow for easier input and/or interpretation.

Field 006 functions as an extension of field 008 when the resource represented by the record has multiple format characteristics. Field 006 contains a subset of the positions defined in the 008 field. The input and display of field 006 elements varies by interface and selected options. In MARC 21, field 006 does not have indicators or subfield codes.

Elements in both the Fixed Field and field 006 are identified by position.

MARC Leader and 008 field elements common to all formats

The following tables show the byte position, and the fixed field mnemonic and/or name and, when applicable, the input standard of elements of the MARC Leader and those elements of the MARC 008 common to all bibliographic formats. These tables allow you to identify elements when setting up your local technical specifications or if viewing them in a display other than through an OCLC interface or a straight MARC display in your local system.

The MARC Leader is a fixed field that comprises the first 24 character positions (00-23) of each bibliographic record and consists of data elements that contain numbers or coded values that define the parameters for the processing of the record.

Field 008 character positions 00-17 and 35-39 are defined the same for field 008 in the MARC 21 bibliographic format, regardless of record type.

Byte	Leader	Byte	008 Field
00-04	Logical Record Length	00-05	Entered
05	Rec stat	06	DtSt
06	Type	07-10	Dates (Date 1)
07	BLvl	11-14	Dates (Date 2)
08	Ctrl	15-17	Ctry
09	Character Coding Scheme	18-34	Format specific (See below)
10	Indicator Count	35-37	Lang
11	Subfield Code Count	38	MRec
12-16	Base Address of Data	39	Srce
17	ELvl
18	Desc
19	Linked Record Requirement
20	Length of the Length-of-Field Portion
21	Length of the Starting-Character-Position Portion
22	Transaction Type Code in Hexadecimal (OCLC defined)
23	Undefined

Format-Specific 008 and 006 elements

The definition of field 008 character positions 18-34 varies according to the Type of Record code in Leader/06 and Bibliographic Level code in Leader/07. Certain data elements are defined the same in more than one 008 field configuration. When similar data elements are defined for inclusion in a field 008 for different record types/bibliographic level, they generally occupy the same field 008 character positions.

008	006	BKS	CNR	COM	MAP	MIX	REC	SCO	VIS
	0	a, t	s	m	e, f	p	i, j	c, d	g, k, o, r
18	1	Ills	Freq		Relf		Comp	Comp	Time
19	2		Regl				Comp	Comp
20	3						FMus	FMus
21	4		SrTp				Part	Part
22	5	Audn	Orig	Audn	Proj		Audn	Audn	Audn
23	6	Form	Form	Form	Proj	Form	Form	Form
24	7	Cont	EntW				AccM	AccM
25	8		Cont		CrTp
26	9			File
27	10
28	11	GPub	GPub	GPub	GPub				GPub
29	12	Conf	Conf		Form				Form
30	13	Fest					LTxt	LTxt
31	14	Indx			Indx		LTxt	LTxt
32	15
33	16	LitF	Alph		SpFm		TrAr	TrAr	TMat
34	17	Biog	S/L		SpFm				Tech

For more information about the MARC Leader and field 008 in bibliographic records, see MARC 21 Format for Bibliographic Data Leader and 008--Fixed-Length Data Elements--General Information. For more information about the MARC Leader and field 008 in holdings records, see MARC 21 Format for Holdings Data Leader and 008--Fixed-Length Data Elements--General Information.

Input standards for Leader, 008, and 006 elements

The same input standards apply for fixed-field elements in 008 and 006. For more information about field 006, see MARC 21 Format for Bibliographic Data 006 Introduction--Additional Material Characteristics.

The input standards designations used in the table below are M (Mandatory), O (Optional), R (Required if applicable), and SS (System supplied). For more information about input standards, see section 1.2, Input Standards.

Mnemonic	Name	BKS	CNR	COM	MAP	MIX	REC	SCO	VIS
AccM	Accompanying Matter	–	–	–	–	–	O	O	–
Alph	Original Alphabet or Script of Title	–	O	–	–	–	–	–	–
Audn	Target Audience	O	–	O	–	–	O	O	O
Biog	Biography	O	–	–	–	–	–	–	–
BLvl	Bibliographic Level	M	M	M	M	M	M	M	M
Comp	Form of Composition	–	–	–	–	–	O	O	–
Conf	Conference Publication	M	O	–	–	–	–	–	–
Cont	Nature of Contents	O	O	–	–	–	–	–	–
CrTp	Type of Cartographic Material	–	–	–	M	–	–	–	–
Ctrl	Type of Control	R	R	R	R	R	R	R	R
Ctry	Country of Publication, etc.	R	R	R	R	R	R	R	R
Dates	Date 1 and Date 2	M	M	M	M	M	M	M	M
Desc	Descriptive Cataloging Form	M	M	M	M	M	M	M	M
DtSt	Type of Date/Publication Status	M	M	M¹	M	M	M	M	M
ELvl	Encoding Level	M	M	M	M	M	M	M	M
Entered	Date Entered	SS	SS	SS	SS	SS	SS	SS	SS
EntW	Nature of Entire Work	–	O	–	–	–	–	–	–
Fest	Festschrift	M	–	–	–	–	–	–	–
File	Type of Computer File	–	–	O	–	–	–	–	–
FMus	Format of Music	–	–	–	–	–	SS	O	–
Form	Form of Item	R	R	R	R	R	R	R	R
Freq	Frequency	–	O	–	–	–	–	–	–
GPub	Government Publication	M	M	M	M	–	–	–	M
Ills	Illustrations	O	–	–	–	–	–	–	–
Indx	Index	O	–	–	O	–	–	–	–
Lang	Language Code	M	M	M	M	M	M	M	M
LitF	Literary Form	O	–	–	–	–	–	–	–
LTxt	Literary Text for Sound Recordings	–	–	–	–	–	O	SS	–
MRec	Modified Record	R	R	R	R	R	R	R	R
OCLC	OCLC Control Number	SS	SS	SS	SS	SS	SS	SS	SS
Orig	Form of Original Item	–	R,O²	–	–	–	–	–	–
Part	Music Parts	–	–	–	–	–	SS	O	–
Proj	Projection	–	–	–	R	–	–	–	–
Rec stat	Record Status	SS	SS	SS	SS	SS	SS	SS	SS
Regl	Regularity	–	O	–	–	–	–	–	–
Relf	Relief	–	–	–	M	–	–	–	–
Replaced	Date of Last Replace	SS	SS	SS	SS	SS	SS	SS	SS
S/L	Entry Convention	–	M	–	–	–	–	–	–
SpFm	Special Format Characteristics	–	–	–	M	–	–	–	–
Srce	Cataloging Source	M	M	M	M	M	M	M	M
SrTp	Type of Continuing Resource	–	M	–	–	–	–	–	–
Tech	Technique	–	–	–	–	–	–	–	O
Time	Running Time	–	–	–	–	–	–	–	M¹
TMat	Type of Material	–	–	–	–	–	–	–	M
TrAr	Transposition and Arrangement	–	–	–	–	–	SS	O	–
Type	Type of Record ³	M	M	M	M	M	M	M	M
¹ Mandatory for motion pictures and videorecordings. Use nnn for other materials in VIS. ² Required if applicable for microform items; optional for non-microform items. ³ Includes Type of Material (006)

This page last revised: November 18, 2021