0xx Fields

Contents   Fixed field   Access points   0xx   1xx   2xx   3xx   4xx   5xx   6xx   7xx   8xx   9xx   Control subfields

032  Postal Registration Number (R)

Record Type


Input Standards

Field (Full/Minimal)
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards (Full/Minimal)
ǂa Postal registration number (NR) Mandatory/Mandatory
ǂb Source agency assigning the number (NR) Mandatory/Mandatory
ǂ6 Linkage (NR) System supplied/System supplied
ǂ8 Field link and sequence number (R) Optional/Optional


Contains postal service registration numbers. Some countries require postal service registration numbers for certain mailing class privileges. In the United States, the U.S. Postal Service assigns U.S. Postal Service (USPS) publication numbers to second-class and controlled-circulation material.

In Canada, Canada Post (CP) assigns the Second Class Mail Registration Number.

The National Serials Data Program uses field 032 to record USPS numbers of publications for which NSDP has reported ISSNs to the Postal Service.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank.

blank character


2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank.

blank character



ǂa Postal registration number

Enter USPS numbers as six digits. Enter leading 0's to fill all six positions. Do not enter hyphens. Canada Post (CP) Second Class Mail Registration numbers are recorded as four digits.

032     003752
032     9545
ǂb Source agency assigning the number

The source of the number in subfield ǂa. For numbers assigned by Canada Post, the name of the source is given as CP.

032     003752 ǂb USPS
032     9545 ǂb CP
ǂ6 Linkage

Data that link fields when non-Latin script is entered. This subfield is system supplied and does not appear in OCLC online displays. Do not manually add subfield ǂ6. For more information about subfield ǂ6, see Control Subfields.

ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.


Field 032 is not indexed.


For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 032.

This page last revised: December 28, 2020