086 Government Document Classification Number

Field definition and scope:

Field 086 contains the classification number assigned to a government document by a government agency at any level (e.g., provincial, state, national, international). If a number can be characterized as both a stock number (field 037) and a classification number, the number is recorded in field 086. If the nature of the number is unknown, it is recorded in field 037 (Source of Acquisition). Field 086 is repeated for multiple valid government document classification numbers.

The government document classification number is an agency-assigned data element. It is assigned by designated agencies that have a government classification program.

The National level record requirement for this field is Mandatory if applicable.

Field 086 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:

Position	Description	NLR	MLR	Repeatability
Field 086	Government Document Classification Number	A	O	R
Indicator:
First	Number source	M
#	Source specified in subfield $2	A
0	Superintendent of Documents Classification System	A
1	Government of Canada Publications: Outline of Classification	A

Second	Undefined; contains a blank	M

Subfield code:
$a	Classification number	M	O	NR
$z	Canceled/invalid classification number	A	O	R
$0	Authority record control number or standard number	O	O	R
$1	Real World Object URI			R
$2	Number source	A	O	NR
$6	Linkage	A	O	NR
$8	Field link and sequence number	O	O	R

Input conventions:

Punctuation

U.S. Superintendent of Documents Classification numbers

Government of Canada Publications: Outline of Classification numbers

Display constants

Content designator history:

Field 086 was defined originally as Superintendent of Documents Classification. Both indicators were undefined; subfield $a contained the classification number. [USMARC only]

In 1975, the scope of the field was expanded to include document numbers from other government jurisdictions and the name of the field changed to Government Document Number.

In 1981, the scope of the field was restricted to call numbers and classification numbers.

First Indicator - Government jurisdiction (BK MP MU VM SE)

In 1975, the first indicator was defined as Government jurisdiction with values 0 (United States), 1 (Canada), 2-9 (Reserved).

In 1981, the first indicator definition was made obsolete, and subfield $2 was defined for recording a code for the source of the number.

In 1985, the first indicator position was given the present definition.

First Indicator - Source of number (BK MP MU VM SE)

Value # - Undefined [obsolete]: In 1985, the first indicator position was given its present definition. Records created prior to this change may contain value # (blank) coded when the first indicator was undefined, or values 0 or 1 depending upon the active definition of the indicator.

Second Indicator [obsolete, 1997] [CAN/MARC only]: Prior to 1997, the second indicator was defined to indicate the name of the printing agency as well as the language of the work. The values were: # (when first indicator is not "1"), 0 (IC cat. no.), 1 (Cat. IC, no.), 2 (QP cat. no.), 3 (Cat. IR, no.), 4 (DSS cat. no.), and 5 (Cat. MAS, no.).

Subfield $0 - Authority record control number or standard number [new, 2017]

Subfield $1 - Real World Object URI [new, 2017]

Subfield $2 - Number source [new, 1981]