Field definition and scope:

Field 046 contains dates that are associated with the entity described in the record.  These include:

For a person:  a person's date of birth, date of death, and the date or date range of the person's period of activity.

For a corporate body:  a date or range of dates on which a conference, etc., is held, or a date with which the corporate body is otherwise associated (e.g., date of establishment, date of termination, period of activity).

For a family:  a significant date associated with the family.

For a work or expression:  see subfield $k (Beginning or single date created).

The date and time are recorded according to Representations of Dates and Times (ISO 8601) in the pattern yyyy, yyyy-mm, or yyyymmdd (4 for the year, 2 for the month, and 2 for the day) unless subfield $2 (Source of date) specifies another date scheme.

The National level record requirement for this field is Optional.

Field 046 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National level (NLR) record requirements, and designator repeatability, see table below:

Position

Description

NLR

Repeatability

Field 046

Special Coded Dates

O

R

Indicator:

 

 

 

First

Undefined; contains a blank

M

 

Second

Undefined; contains a blank

M

 

 

 

 

 

Subfield code:

 

 

 

$f

Birth date

O

NR

$g

Death date

O

NR

$k

Beginning or single date created

O

NR

$l

Ending date created

O

NR

$o

Single or starting date for aggregated content

 

NR

$p

Ending date for aggregated content

 

NR

$q

Establishment date

 

NR

$r

Termination date

 

NR

$s

Start period

O

NR

$t

End period

O

NR

$u

Uniform Resource Identifier

O

R

$v

Source of information

O

R

$2

Source of date scheme

A

NR

$6

Linkage

A

NR

$8

Field link and sequence number

O

R

Content designator history:

Field 046 - Special Coded Dates  [new, 2009]

Subfields  $k - Beginning or single date created  [new, 2010]

$l - Ending date created  [new, 2010]

Subfields  $o - Single or starting date for aggregated content  [new, 2013]

$p - Ending date for aggregated content  [new, 2013]

Subfields  $q - Establishment date  [new, 2015]

$r - Termination date  [new, 2015]

$s - Start period  [redefined, 2015]

$t - End period  [redefined, 2015]

Subfields $s and $t formerly included establishment/termination date of a corporate body.

LC Guidelines:

 046  Special Coded Dates

DCM Z1 Instructions:

 046  Special Coded Dates

Related MARC fields or documents:

RDA in MARC Authority Data

Source Codes for Vocabularies, Rules, and Schemes:

Date and Time Scheme Source Codes

See also:

0XX  Numbers and Codes

Variable Data Fields