Field definition and scope:

Field 506 contains information about restrictions imposed on access to the described materials.

For published works, this field contains information on limited distribution.  For continuing resources, the restrictions must apply to all issues.

If a note merely indicates the intended audience of a publication and does not imply restrictions on access, it is recorded in field 521 (Target Audience Note).  Terms governing the use of materials after access has been allowed are recorded in field 540 (Terms Governing Use and Reproduction).

The National level record requirement for this field is Optional.

Field 506 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 506

Restrictions on Access Note

O

O

R

Indicator:

 

 

 

 

First

Restriction

M

 

 

#

No information provided

A

 

 

0

No restrictions

A

 

 

1

Restrictions apply

A

 

 

 

 

 

 

 

Second

Undefined; contains a blank

M

 

 

 

 

 

 

 

Subfield code:

 

 

 

 

$a

Terms governing access

M

O

NR

$b

Jurisdiction

A

O

R

$c

Physical access provisions

A

O

R

$d

Authorized users

A

O

R

$e

Authorization

A

O

R

$f

Standardized terminology for access restriction

O

O

R

$u

Uniform Resource Identifier

O

O

R

$2

Source of term

A

O

NR

$3

Materials specified

O

O

NR

$5

Institution to which field applies

A

O

NR

$6

Linkage

A

O

NR

$8

Field link and sequence number

O

O

R

Input conventions:

Punctuation

Content designator history:

Subfield $u - Uniform Resource Identifier  [new, 2002]

First Indicator - Restriction  [new, 2006]

Subfield $f - Standardized terminology for access restriction  [new, 2006]

Subfield $2 - Source of term  [new, 2006]

Related MARC fields or documents:

521  Target Audience Note

59X  Local Notes

880  Alternate Graphic Representation

Source Codes for Vocabularies, Rules, and Schemes:

Access Restriction Term Source Codes

See also:

5XX  Note Fields

Variable Data Fields