222 Key Title (R) (Variable Data Field)
Field 222 contains a unique title which is assigned to a continuing resource in conjunction with an International Standard Serial Number (ISSN) recorded in field 022 (ISSN). It is formed from title information transcribed from a piece of the continuing resource and is constructed with qualifiers to make it unique when necessary. The key title is an agency-assigned data element. It is assigned by national centers under the auspices of the ISSN Network.
The National level record requirement for this field is Mandatory if applicable.
Field 222 is repeatable.
Guidelines for applying content designators:
For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:
Position |
Description |
NLR |
MLR |
Repeatability |
Field 222 |
Key Title |
A |
O |
R |
Indicator: |
|
|
|
|
First |
Undefined; contains a blank |
M |
|
|
|
|
|
|
|
Second |
M |
|
|
|
0 |
A |
|
|
|
1-9 |
A |
|
|
|
|
|
|
|
|
Subfield code: |
|
|
|
|
$a |
M |
O |
NR |
|
$b |
A |
O |
NR |
|
$6 |
A |
O |
NR |
|
$8 |
O |
O |
R |
First indicator - Specifies whether variant title and/or added entry is required (CF SE) [obsolete, 1990]
The first indicator was originally defined to specify whether the key title was the same or a variant of the title proper in field 245 and was used by LC to generate or suppress the 245 title in records sent to the International ISSN Center: 0 (Key title is same as field 245), 1 (Key title is not the same as field 245).
In 1977, this indicator was redefined to indicate whether an added entry was needed in addition to whether the title was a variant, and values 2 and 3 were defined. The four values were: 0 ((No key title added entry; title proper same), 1 (Key title added entry; title proper different), 2 (Key title added entry; title proper same), 3 (No key title added entry; title proper different).
In 1990, the first indicator was made obsolete.
In pre-AACR 2 records, the first indicator was also used to generate an added entry for the key title. The display constant for the tracing was: Key Title.
Related MARC field or document:
022 International Standard Serial Number
See also: