Information:
The National Bibliographic Agency Control Number is a
unique number assigned by a national bibliographic
agency other than the Library of Congress. This number
is a record control number used in a national
bibliographic agency system, rather than a number used
for an entry in a national bibliography (015 tag).
The National Library of Canada has made extensive use
of the 016 tag. In January, 2001 a structural change
occurred in the structure of this tag. The National
Library of Canada's control number structure is given
below.
Pre-Year 2001 Control Number Structure
Name of Element Number of characters
Undefined 1
Year 2
Serial number 6
Check digit 1
Language code 1
Undefined 1
Revision indicator variable
2001 and Beyond Control Number Structure
Name of Element Number of characters
Year 4
Serial number 6
Check digit 1
Language code 1
Revision indicator variable
Indicators
First National Bibliographic agency
blank Library and Archives Canada
7 Source specified in subfield 2
Second Undefined
blank Undefined
Subfields
a Record control number (NR)
z Canceled/invalid control number (R)
2 Source (NR)
Punctuation
There is no mark of punctuation at the end of this
tag.
Examples:
Record control number for the Library and Archives Canada
016 _a730032015
016 _a890000298
Record control number for the British Library
016 _ab9117951
_zE000214460
_2UK
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