338 Carrier Type

Field definition and scope:

Field 338 contains the carrier type which reflects the format of the storage medium and housing of a carrier in combination with the media type (which indicates the intermediation device required to view, play, run, etc., the content of a resource). It is used as an alternative to or in addition to the coded expression of carrier type in field 007/01 (Specific material designation). Field 338 information enables indication of more specific carrier types and carrier types from various lists.

Multiple carrier types from the same source vocabulary or code list may be recorded in the same field in separate occurrences of subfield $a (Carrier type term) and subfield $b (Carrier type code). Terms from different source vocabularies are recorded in separate occurrences of the field.

The National level record requirement for this field is Optional.

Field 338 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 338	Carrier Type	O	O	R
Indicator:
First	Undefined; contains a blank	M
Second	Undefined; contains a blank	M

Subfield code:
$a	Carrier type term	M	O	R
$b	Carrier type code	M	O	R
$0	Authority record control number or standard number			R
$1	Real World Object URI			R
$2	Source	M	O	NR
$3	Materials specified	O	O	NR
$6	Linkage	A	O	NR
$8	Field link and sequence number	O	O	R

Content designator history:

Field 338 - Carrier Type [new, 2009]

Subfield $0 - Authority record control number or standard number [new, 2015]

Subfield $1 - Real World Object URI [new, 2017]