Guidelines for Usage: 001 Control Number

NACO LSP Usage:

The control number is a NACO Control Number and has the following structure:

Alphabetic prefix - Three character positions contain the alphabetic prefix. The valid control number prefixes are:

n## Name and series authority records originally input on the Library of Congress (LC) system

no# LSP name and series authority records originally input on the Online Computer Library Center (OCLC) system

nr# LSP name and series authority records originally input on the Research Libraries Information Network (RLIN) system

nw# LSP name and series authority records originally input on the Western Library Network (WLN) system

The prefix is carried as lowercase characters; it is left justified and unused positions contain # (blanks ).

Year - Two digits represent the year of record creation.

Serial number - One to six digits, right justified and unused positions contain zeros.

Supplement number - For consistency with LC control numbers, a # (blank) is carried as the last character position of the number.

LC Usage:

Library of Congress and NACO control numbers have the same structure. LC authority record control numbers use the following alphabetic prefixes:

n## Name and series authorities

sh# Subject authorities

See: LC Control Number structure

For more information on LC Guidelines, select:

Guidelines for Usage: NACO/LSP and LC

To return:

Use the key.