5xx Fields

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506  Restrictions on Access Note (R)

Record Type

BIB

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
ǂg Availability date (R) Optional/Optional
ǂq Supplying agency (NR) 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
ǂ6 Linkage (NR) System supplied/System supplied
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.

For information on punctuation, see the Punctuation section below.

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 (e.g. open access).

 
1

Restrictions apply. Restrictions apply to some or all of the material (e.g. restricted or closed access).

2nd Indicator

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

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 from the DLF/OCLC Registry of Digital Masters Working Group.

506 1   Closed until January 1, 2068. ǂf No online access ǂ2 star
ǂg Availability date

Date when the resource changes its access status (e.g., when it becomes freely available). Preferred structure for the date is according to the format yyyymmdd in accordance with ISO 8601, Representation of Dates and Times. The mm and dd positions contain zeroes when the data is unknown.

506 0   Open access ǂg 20190207
ǂq Supplying agency

A MARC Organization Code, International Standard Identifier for Libraries and Related Organizations (ISIL), or textual name of the organization or project responsible for the data in the field. See MARC Code List for Organizations, which also includes links to Canadian, United Kingdom, and German MARC Organization Code lists, along with the International Standard Identifier for Libraries and Related Organizations (ISIL).

506     This collection is open for research ǂq InMuB
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. For more information about subfield ǂ2, see Control Subfields.

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.

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 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.

Punctuation

For records containing punctuation, follow these instructions:

  • Optionally, follow an initial subfield ǂ3 by a colon-space or a space-colon-space if following an open date
  • Precede subfields ǂa, ǂb, ǂc, ǂd, and ǂe by a semicolon-space unless preceded by subfield ǂ3
  • Precede subfield ǂf by a period-space unless preceded by subfield ǂ3
  • Optionally, precede subfield ǂu by a colon-space
  • Include incidental punctuation needed within any subfields, e.g., commas, periods (following abbreviations or initials), etc.
  • Optionally, add a terminal period at the end of the field (preceding subfields ǂg, ǂq, ǂu, ǂ2, and ǂ5) unless the last subfield ends with an ellipsis or period (following an abbreviation or initial)
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.

For records containing minimal or no punctuation, include incidental punctuation needed within any subfields. Otherwise, omit the punctuation outlined above.

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

For more information on punctuation, including OCLC policy, see section 2.8, Punctuation.

Indexing

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

This page last revised: November 27, 2019