016 National Bibliographic Agency Control Number

Field definition and scope:

Field 016 contains unique numbers that have been assigned to a record by a national bibliographic agency other than the Library of Congress. (Library of Congress control numbers are recorded in field 010.) The control number may also appear in field 001 (Control Number) in records distributed by the same national agency. An organization using the record may remove the national bibliographic agency control number from field 001 and use field 001 for its own system control number.

A record may contain field 016 with a canceled or invalid control number of a previously-distributed record. A record may be canceled because it is a duplicate record for the same item.

Field 016 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, and designator repeatability, see table below:

Position	Description	Repeatability
Field 016	National Bibliographic Agency Control Number	R
Indicator:
First	National bibliographic agency
#	Library and Archives Canada
7	Source specified in subfield $2

Second	Undefined; contains a blank

Subfield code:
$a	Record control number	NR
$z	Canceled or invalid control number	R
$2	Source	NR
$8	Field link and sequence number	R

Content designator history:

First Indicator - National bibliographic agency

Value # - Library and Archives Canada [renamed, 2004]: Value # (National Library of Canada) was renamed Library and Archives Canada to reflect change in the institution's name.