MARC 21 Format Standards for Cataloging
The following tables list some basic MARC 21 format standards for cataloging.

For detailed information, go to the MARC 21 Concise Format for Bibliographic Data documentation from the Library of Congress (http://www.loc.gov/marc/bibliographic/ecbdhome.html).
Leader Codes
The leader consists of the first 24 character positions in the MARC record. In the formatted display of the 008 fixed field, five elements from the leader are displayed.
Label (Used in format) |
Sample Value |
Description |
ACCOMP |
Accompanying matter |
|
(blank) |
No Accompanying matter [DEFAULT] |
|
a |
Discography |
|
b |
Bibliography |
|
e |
Biography of composer/author |
|
BIB_LVL |
Bibliographic level |
|
a |
Monographic part |
|
b |
Serial part |
|
c |
Local collection |
|
m |
Monograph [DEFAULT for MARC] |
|
s |
Serial [DEFAULT for SERIAL] |
|
DESC |
Descriptive cataloging form |
|
(blank) |
Non-ISBD |
|
a |
AACR 2 |
|
i |
ISBD (headings are not formulated according to AACR 2) |
|
ENC_LVL |
Encoding level |
|
(blank) |
Full description based on physical exam [DEFAULT] |
|
1 |
Full description, item not examined |
|
2 |
Less-than-full |
|
5 |
Partial or preliminary description |
|
7 |
Minimal description |
|
REC_TYPE |
Record type |
|
a |
Language material |
|
c |
Notated music |
|
e |
Cartographic material |
|
g |
Projected medium |
|
i |
Nonmusical sound recording |
|
j |
Musical sound recording |
|
k |
Two-dimensional nonprojectable graphic |
|
m |
Computer file |
|
o |
Kit |
|
p |
Mixed material |
|
r |
Three-dimensional artifact or naturally occurring object |
|
REC_STATUS |
|
Record Status |
|
a |
Increase in encoding level |
|
c |
Corrected and revised |
|
d |
Deleted |
|
n |
New |
|
p |
Increase in encoding level from prepublication |
TYPECTRL |
Type of control |
|
(blank) |
No specific type of control |
|
a |
Archival |
Fixed Field Codes
The fixed length fields, often called fixed fields, contain numeric or alphanumeric codes identifying certain key features of the title described. The following tables list valid fixed fields in the seven MARC 21 bibliographic formats; each is accompanied by an example of the type of data that can be used in that field.

This is not a full listing of codes.
Label (Used in format) |
Sample Value |
Description |
ACCOMP |
Accompanying matter |
|
(blank) |
No accompanying matter [DEFAULT] |
|
m |
Script material |
|
r |
Instructional materials |
|
ALPHABT |
Original alphabet or script of title |
|
a |
Basic roman, no diacritics or special characters |
|
b |
Extended roman, with diacritics or special characters |
|
c |
Cyrillic |
|
d |
Japanese |
|
f |
Arabic |
|
AUDIENCE |
Audience |
|
(blank) |
Unknown or not applicable [DEFAULT] |
|
j |
Juvenile |
|
AUDIENCE |
Audience |
|
(blank) |
Unknown or not applicable [DEFAULT] |
|
a |
Preschool |
|
b |
Primary |
|
c |
Pre-adolescent |
|
d |
Adolescent |
|
BASE |
Projection |
|
(blank) |
Projection not specified |
|
bd |
Mercator |
|
zz |
Other |
|
BIOG |
Biography |
|
(blank) |
No biographical material |
|
a |
Autobiography |
|
b |
Individual biography |
|
c |
Collective biography |
|
COMP |
Form of composition |
|
bt |
Ballets |
|
bg |
Bluegrass music |
|
bl |
Blues |
|
cr |
Carols |
|
fm |
Folk music |
|
gm |
Gospel music |
|
hy |
Hymns |
|
jz |
Jazz |
|
mp |
Motion picture music |
|
nn |
Not applicable |
|
op |
Operas |
|
pp |
Popular music |
|
rc |
Rock music |
|
sy |
Symphonies |
|
uu |
Unknown [DEFAULT] |
|
CONFPUB |
Conference publication |
|
0 |
Not a conference publication [DEFAULT] |
|
1 |
Conference publication |
|
CONT |
Nature of contents |
|
(blank) |
No specific content [DEFAULT] |
|
a |
Abstracts, summaries of other works |
|
b |
Bibliographies |
|
c |
Catalogs |
|
d |
Dictionaries |
|
e |
Encyclopedias |
|
i |
Indexes to other works |
|
CTRY |
Place of publication, production, execution |
|
2-3 character code: |
||
nyu |
New York, United States |
|
ctu |
Connecticut, United States |
|
DATE1 |
Date 1/beginning date of publication (YYYY) |
|
DATE2 |
Date 2/ending date of publication (YYYY) |
|
DAT_TP |
Type of date/publication status |
|
b |
No dates given or B.C. dates involved |
|
c |
Continuing resource currently published; beginning date in DATE1, 9999 in DATE2 |
|
d |
Continuing resource ceased publication; beginning date in DATE1, ending date in DATE2 |
|
i |
Inclusive dates; from DATE1 to DATE2 |
|
m |
Multiple dates in DATE1, DATE2 |
|
n |
Dates unknown; DATE1, DATE2 are blank [DEFAULT] |
|
p |
Date of distribution in DATE1, date of production in DATE2 |
|
r |
Reprint date in DATE1, original date in DATE2 |
|
s |
Single known date in DATE1 |
|
ENTRD |
Date entered on file in the pattern (YYMMDD) |
|
FESTSCHR |
Festschrift |
|
0 |
Not a festschrift [DEFAULT] |
|
1 |
Festschrift |
|
FICTION |
Literary form |
|
0 |
Nonfiction [DEFAULT] |
|
1 |
Fiction |
|
FILETYPE |
Type of computer file |
|
b |
Computer program |
|
d |
Document |
|
z |
Other |
|
u |
Unknown [DEFAULT] |
|
FORMAT |
Format of music |
|
a |
Full score |
|
d |
Voice score |
|
u |
Unknown [DEFAULT] |
|
z |
Other |
|
FREQUN |
Frequency |
|
(blank) |
Not determinable frequency [DEFAULT] |
|
a |
Annual |
|
b |
Bimonthly |
|
c |
Semiweekly |
|
d |
Daily |
|
e |
Biweekly |
|
f |
Semiannual |
|
m |
Monthly |
|
q |
Quarterly |
|
w |
Weekly |
|
u |
Unknown |
|
GOVTPUB |
Government publication |
|
(blank) |
Not a government publication [DEFAULT] |
|
f |
Federal/national publication |
|
s |
State publication |
|
l |
Local publication |
|
ILLUS (format: MARC) |
Illustrations |
|
(blank) |
No illustrations [DEFAULT] |
|
a |
Illustrations |
|
b |
Maps |
|
c |
Portraits |
|
o |
Photographs |
|
INDX |
Index |
|
0 |
No index [DEFAULT] |
|
1 |
Index present |
|
ISSN |
ISSN Center |
|
(blank) |
No ISDS center code assigned |
|
0 |
International Center, Paris, France |
|
1 |
U.S. NSDP |
|
4 |
Canadian ISDS Center |
|
z |
Other |
|
LANG |
Language |
|
3 letter code from Code list; example |
||
eng |
English |
|
LTXT (format: MUSIC) |
Literary text for nonmusical sound recordings |
|
(blank) |
Item is musical sound recording |
|
f |
Fiction |
|
j |
Language instruction |
|
n |
Not applicable |
|
p |
Poetry |
|
MOD_REC |
Modified record |
|
(blank) |
Not modified [DEFAULT] |
|
s |
Shortened |
|
x |
Missing characters |
|
PHYS_MED |
Form of original item |
|
(blank) |
None of the specified forms |
|
a |
Microfilm |
|
b |
Microfiche |
|
d |
Large print |
|
f |
Braille |
|
PUB_TYPE |
Nature of entire work |
|
(blank) |
No specified nature [DEFAULT] |
|
a |
Abstracts, summaries of other works |
|
b |
Bibliographies |
|
c |
Catalogs |
|
d |
Dictionaries |
|
e |
Encyclopedias |
|
REC_GRP |
Cartographic material type |
|
a |
Single map |
|
b |
Map series |
|
d |
Globe |
|
REGULR |
Regularity |
|
n |
Predictably irregular |
|
r |
Regular |
|
x |
Completely irregular |
|
u |
Regularity unknown |
|
RELIEF (format: MAP) |
Relief |
|
(blank) |
No relief shown |
|
a |
Contours |
|
b |
Shading |
|
c |
Gradient tints |
|
f |
Form lines |
|
REPR |
Form of item |
|
(blank) |
None of the specified forms |
|
a |
Microfilm |
|
b |
Microfiche |
|
d |
Large print |
|
f |
Braille |
|
SER_TP |
Type of continuing resource |
|
(blank) |
None of the specified types |
|
m |
Monographic series |
|
n |
Newspaper |
|
p |
Periodical |
|
S/L_ENT |
Entry convention |
|
0 |
Successive entry |
|
1 |
Latest entry |
|
SOURCE |
Cataloging source |
|
(blank) |
National bibliographic agency |
|
c |
Cooperative cataloging program |
|
d |
Other |
|
u |
Unknown |
|
SPEC_FMT |
Special format characteristics |
|
(blank) |
No special format specified |
|
k |
Calendar map |
|
l |
Puzzle map |
|
o |
Wall map |
|
z |
Other special format |
|
TECH |
Technique (video or motion picture) |
|
a |
Animation |
|
c |
Animation with live action |
|
l |
Live action |
|
n |
Not applicable–not a motion picture or videorecording |
|
u |
Unknown |
|
z |
Other |
|
TIME |
Running time for motion pictures and videorecordings |
|
[3 digit number] |
Example: 014 is fourteen minutes |
|
TYPE_MAT |
Type of visual material |
|
a |
Art original |
|
b |
Kit |
|
f |
Filmstrip |
|
g |
Game |
|
i |
Picture |
|
m |
Motion picture |
|
s |
Slide |
|
t |
Transparency |
|
v |
Videorecording |
Variable Data Fields
The variable data fields, often called text entries in SirsiDynix Symphony, contain most of the indexed information that describes a bibliographic entity. The following table lists valid text entries used in the seven MARC 21 bibliographic formats.

This is not a full listing of all fields.
Field (Entry ID) |
Description (Entry label) |
010 |
LCCN |
020 |
ISBN |
022 |
ISSN |
030 |
CODEN |
040 |
Cataloging source |
041 |
Language codes |
050 |
LC call number |
060 |
NLM call number |
066 |
Character sets |
074 |
GPO item number |
082 |
Dewey call number |
086 |
U.S. Government document call number |
090 |
Local LC call number |
092 |
Local Dewey call number |
099 |
Local call number |
100 |
Personal name |
110 |
Corporate name |
111 |
Meeting name |
130 |
Uniform title |
222 |
Key title |
240 |
Uniform title |
245 |
Title |
246 |
Variant title |
247 |
Former title |
250 |
Edition |
254 |
Musical presentation |
255 |
Cartographic mathematical data |
256 |
Computer file characteristics |
257 |
Production country |
260 |
Publication information |
264 |
Production, publication, distribution, manufacture, or copyright notice |
300 |
Physical description |
306 |
Playing time |
310 |
Current frequency |
321 |
Former frequency |
340 |
Medium |
362 |
Dates of publication and/or sequential designation |
400 |
Series |
410 |
Series |
411 |
Series |
440 |
Series |
490 |
Series |
500 |
General note |
501 |
”;With” note |
502 |
Dissertation note |
504 |
Bibliography note |
505 |
Contents |
506 |
Access restriction |
507 |
Scale note |
508 |
Credits |
511 |
Performers |
515 |
Special numbering |
520 |
Summary |
521 |
Audience note |
530 |
Other forms |
533 |
Reproduction note |
534 |
Original version |
580 |
Linking entry complexity note |
590 |
Local note |
598 |
Bulletin heading |
599 |
Local note |
600 |
Personal subject |
610 |
Corporate subject |
611 |
Meeting subject |
630 |
Uniform title |
650 |
Topical subject |
651 |
Geographic subject |
653 |
Index term |
654 |
Faceted term |
690 |
Local subject |
691 |
Local subject |
700 |
Personal name |
710 |
Corporate name |
711 |
Meeting name |
730 |
Uniform title |
740 |
Related/analytical title |
770 |
Supplement/special issue |
772 |
Supplement parent entry |
773 |
Host item entry |
777 |
Issued with |
780 |
Preceding title |
785 |
Succeeding title |
800 |
Series |
810 |
Series |
811 |
Series |
830 |
Series |
856 |
Electronic location and access |
Nonfiling Indicators in SirsiDynix Symphony MARC Records
Some MARC 21 entries are structured with two special markers after the entry ID called indicators. Indicators have a variety of uses, but for all title fields, one of the indicators is a nonfiling character count. A number for 0 - 9 entered in this position represents the number of characters that come before the first significant character. Some title fields use the first indicator position to count nonfiling characters; some title fields use the second indicator position to count nonfiling characters.
SirsiDynix Symphony MARC Record Subfield Codes
Subfield codes consist of two characters which precede specially marked portions of descriptive text. The first character in any subfield code in a SirsiDynix Symphony record is a pipe (|). The character following the pipe can be a lowercase letter, a numeral, or a mark of punctuation. Subfield codes set off or delimit a part of a text entry for special treatment, such as standard catalog display, indexing, and authority control.

This is not a full listing of subfields.
Subfield Code |
Field/Entry |
Definition |
|w |
any heading field |
(OCLC usage) heading changed from original form to AACR2 or AACR2-compatible term |
|? |
any heading field |
(SirsiDynix Symphony usage) precedes the special text flag UNAUTHORIZED, marking headings which do not match currently indexed authority record headings |
|e |
100, 700 |
Relator term such as ill., illus., or ed. |
|b |
245 |
Remainder of title (subtitle, parallel title) |
|c |
245 |
Statement of responsibility |
|c |
260, 264 |
Date published (used in SirsiDynix Symphony for display of catalog records in pub year order) |
|h |
245 |
General material designation such as microfilm, videorecording, kit, model |
|v |
4XX, 8XX |
Volume number or other sequential designation of an item in a numbered series |
|4 |
700, 710 |
Relator code that describes the relationship between the heading and the title, such as “|4prf” after performers’ names, “|4drt” after directors’ names |
l |
any heading field |
(SirsiDynix Symphony usage) precedes an internal number linking a heading in a record to its heading file |