First indicator - Number source

#  Source specified in subfield $2

0  Superintendent of Documents Classification System

1  Government of Canada Publications: Outline of Classification  [LAC use only]

Second indicator:  [LAC use only]

#  See instructions

0  IC cat. no.

1  Cat. IC, no.

2  QP cat. no.

3  Cat. IR, no.

4  DSS cat. no.

5  Cat. MAS, no.


a  Classification number (NR)

z  Canceled/invalid classification number (R)

2  Number source (NR)

6  Linkage (NR)

8  Field link and sequence number (R)

NOTE:  See MARC 21 Format for Bibliographic Data (086 Government Document Classification Number) for code definitions not given below.


Field 086 contains the government document classification number for the serial.  The number may be assigned by a government (or intergovernmental) agency at any level.

First indicator - Number source

#    Source specified in subfield $2.

This value is used for classification systems for state documents and any classification schemes other than the Superintendent of Documents or Canadian systems.

0    Superintendent of Documents Classification System.

Superintendent of Documents classification numbers are assigned only by the U.S. Government Printing Office (GPO).  They may be input by other institutions if verified in the Monthly Catalog of United States Government Publications or the Daily Depository Shipping List.

Editing instructions for SuDocs class nos.:

1.   Input a space between letters and numbers unless there is intervening punctuation.

2.   Input only the "stem" of the number (i.e., that part of the number up to the colon or slash which represents the individual title).  The date, series number, etc. for the particular issue should not be input in this field.

Number on Daily Depository Shipping List

Input as:

TD 1.1:985

086 0# TD 1.1:

A 1.2:R34/985

086 0# A 1.2:R 34/

C 13.13:305

086 0# C 13.13:

1    Government of Canada Publications: Outline of Classification.

These numbers are assigned by the Canadian government printing office to denote special series or publications of a given department.

The number consists of both alphabetic and numeric characters.

Editing instructions for Canadian nos.:

1.   Delete the designation preceding the alphabetic and numeric characters.

2.   Do not input a space between the alphabetic prefix and the remainder of the number.

3.   Do not input spacing in the rest of the number.

4.   Input multiple government document numbers in separate fields.

Second indicator

LAC inputs the second indicator as a local element.  It is displayed on OCLC and is output to LAC on tape.  The second indicator is changed by OCLC to value "#" on output to LC and is distributed in this form.

The definition of the values associated with the second indicator constitute a "Constant" which designates the name of the printing agency as well as the language in which the document is printed (e.g., value "2" is used for English documents printed by the Queen's Printer; value "3" is used for French documents printed by the same agency).

For output to LC and distribution by LC, the constant is appended at the beginning of subfield $a as a prefix to the document number itself.

Input online (and output to LAC):

086 10 CS13-211

Output to LC and distribution by LC:

086 1# IC cat no. CS13-211


$a  Classification number.

The entire number is input in subfield $a.  When there is more than one document number, a separate 086 field must be input for each; subfield $a is not repeatable.

086 0# LC 3.12:

086 0# D 7.6/2-2:4-3/

086 0# D 5.318/2:N 819/

086 0# T 1.3:

086 14 IP-30-1

086 14 CS81-403

086 14 MP22-8

$z  Canceled/invalid classification number.

Subfield $z contains a number that has been canceled or determined to be invalid by the authoritative agency.

GPO inputs the complete number for the specific issue when entering an incorrect SuDocs number in subfield $z.

086 0# A 1.1: $z A 1.1/3:984

$2  Number source.

Subfield $2 contains a code for document schemes other than the Superintendent of Documents and Canadian schemes.  Codes are assigned from the Source Codes for Vocabularies, Rules, and Schemes (Classification Scheme Source Codes).  The content of subfield $2 may be used to generate a display constant for the name of the classification scheme.  When subfield $2 is input, both indicators should be blank.

$6  Linkage.

For instructions on use of subfield $6, see field 880.

Related fields, etc.


086 Government Document Classification Number  (MARC 21 Format for Bibliographic Data)

See also:

01X-09X  Numbers and Codes

Variable Data Fields

Section E.  MARC 21 Format for Serials as Applied Within CONSER

CONSER Editing Guide:  Contents