5xx Introduction

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

506  Restrictions on Access Note (R)

Input Standards

Optional/Optional
1st Indicator  Restriction
blank character No information provided
0 No restrictions
1 Restrictions apply
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa Terms governing access (NR) Required if applicable/Required if applicable
ǂb Jurisdiction (R) Required if applicable/Required if applicable
ǂc Physical access provisions (R) Required if applicable/Required if applicable
ǂd Authorized users (R) Required if applicable/Required if applicable
ǂe Authorization (R) Required if applicable/Required if applicable
ǂf Standardized terminology for access restriction (R) Optional/Optional
ǂu Uniform Resource Identifier (R) Optional/Optional
ǂ2 Source of term (NR) Required if applicable/Required if applicable
ǂ3 Materials specified (NR) Optional/Optional
ǂ5 Institution to which field applies (NR) Required if applicable/Optional
ǂ8 Field link and sequence number (R) Optional/Optional

Definition

A note about the restrictions imposed on access to the described materials. For published works, this field contains information on limited distribution.

Use field 521 if a note merely indicates the intended audience of a publication and does not imply restricted access. Use field 540 for terms governing the use of materials after access has been granted. Use field 590 if the note indicates local limited use (e.g., kept in a locked closet).

Note: For continuing resources, the restrictions must apply to all issues.

1st Indicator

Restriction.

 
blank character

No information provided. No information provided about whether the note states that materials are restricted or unrestricted.

 
0

No restrictions. No restrictions on materials.

 
1

Restrictions apply. Restrictions apply to some or all of the material.

2nd Indicator

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

blank character

Undefined

Subfields

 
ǂa Terms governing access

Legal, physical or procedural restrictions imposed on individuals wishing to see the described materials.

506 1   Available to subscribing member institutions only.
[A note for an electronic journal that is restricted]
506 1   Classified.
506 1   Confidential.
506 1   Not available for commercial use, sale, or reproduction.
506 1   Open to investigators with permission of the Clark family.
506 1   Prior to 1981, distribution was limited to federal judicial personnel.
506 1   Some of the personal correspondence is restricted until Oct. 1, 1983.
ǂb Jurisdiction

The name of a person, an institution or a function or position within the institution by whom or which the terms governing access are imposed and/or enforced and to whom the restriction may be appealed.

506 1   Restricted access; ǂc Written permission required; ǂb Donor.
506 1   ǂ3 Office files of Under Secretary ǂa No one may examine these records or obtain information from them or copies of them except by written permission; ǂb Secretary of the Treasury or his duly authorized representative; ǂc Kept in remote storage; access requires 24 hours advance notice.
ǂc Physical access provisions

Any arrangements required for physical access that may change from time to time.

506 1   Restricted: Material extremely fragile; ǂc Access by appointment only.
ǂd Authorized users

The class of users or specific individuals (by name or title) for whom the restrictions in subfield ǂa do not apply.

506 1   Closed for 30 years; ǂd Federal government employees with a need to know.
ǂe Authorization

The source of the authority for the restriction.

506 1   Classified under national security provisions; ǂb Department of Defense; ǂe Title 50, chapter 401, U.S.C.
ǂf Standardized terminology for access restriction

Data taken from a standardized list indicating the level or type of restriction. You may use terms of your choice or those from the Standardized Terminology for Access Restriction (http://www.oclc.org/digitalregistry/506F_vocabulary.pdf) from the DLF/OCLC Registry of Digital Masters Working Group.

506 1   Closed until January 1, 2068. ǂf No online access. ǂ2 star
ǂu Uniform Resource Identifier

For information about subfield ǂu, see Control Subfields. Repeat subfield if digital object has multiple identifiers (URIs).

506 1   Some restrictions apply. Consult restricted access file for restriction details: ǂu [URI]
ǂ2 Source of term

The MARC code identifying the source of the term used to record the restriction in subfield ǂf. Use a separate subfield for each source. See Access Restriction Term Source Codes (http://www.loc.gov/standards/sourcelist/access-restriction.html).

506 1   ǂ3 Use copy ǂa In copyright material. Searches will return text snippets only. ǂf Preview only. ǂ2 star
ǂ3 Materials specified

For information about subfield ǂ3, see Control Subfields.

506 1   ǂ3 Office files of Under-Secretary ǂa No one may examine these records or obtain information from them or copies of them except by written permission; ǂb Secretary of the Treasury or his duly authorized representative; ǂc Kept in remote storage; Access requires 24 hours advance notice.
ǂ5 Institution to which field applies

For information about subfield ǂ5, see Control Subfields.

ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

Indexing

For indexing and searching information, see Searching WorldCat Indexes, field 506.

This page last revised: October 6, 2016