MARC 21 Format for Authority Data

Summary of Data Coding Interdependencies

Network Development and MARC Standards Office
Library of Congress

The following analyses summarize data coding interdependencies that must be considered in each kind of record identified in 008/09 and in established heading records for specific types of headings. All of the data elements that may (or may not be) used in an authority record are not listed here. Only those elements that are dependent upon other codes or data elements are cited. Annotated full record examples are provided in Appendix B of the MARC 21 Format for Authority Data.

Established heading record (general requirements)

• 008/09 = a or f
• Record must contain a Leader, Directory, and the following variable
  fields: 001, 003, 005, 008, 040, 1XX
• The following fields may not be in the record: 260, 664, 666
• 008/06 is code n or fill character if 008/15 = b
• If 008/10 = n, 008/11 must not be code n
• If 008/11 = n, 008/10 must not be code n
• 008/13 is code n if 008/12 = n or 008/16 = b
• 008/14 is code a if 008/10 is not code n (x, y, z must not be present in 1XX)
• 008/15 is code a if 008/11 is not code n (x, y, z may be present in 1XX)
• 008/16 is code a if 008/12 is not code n (x, y, z must not be present in 1XX)
• 008/17 is any defined code (if 008/09 = f) or a fill character ( | )
• 008/29 is code a or b if 4XX/5XX fields are present
• 008/32 is code n if 1XX is not a 100 field having Indicator 1 = 0, 1, or 2
• 008/33 must not be code n

Established name, name/title, and uniform title headings (other than headings for series)

• 008/09 = a
• The following series-specific variable fields may not be in the
  record: 014, 020, 022, 050, 060, 070, 082, 09X, 64X series
  treatment fields
• 008/10 must not be code n
• 008/11 may be code other than n
• 008/12-13 must be n if 008/16 = b
• 008/14 must be code a
• 008/15 must be code a if 008/11 is not n
• 008/16 must be code b
• 008/28 must be a defined code or a fill character ( | )

Established heading for a series

• 008/09 = a
• The record may contain any of the following series-specific variable
  fields: 014, 020, 022, 050, 060, 070, 082, 09X
• The record may contain 64X series treatment fields with the following
  restrictions:
• 641 and 642 must not be present if 008/13 = b or n
• 642 requires field 645a be code t
• 644, 645, and 646 must not be present if 008/12 = c
• 008/10, 12, and 33 must not be code n
• 008/14 and 16 must be code a
• 008/15 must be code a if 008/11 is not code n
• 008/28 may be coded # or a fill character ( | )
• 008/32 must be code n

Established topical term and nonjurisdictional geographic headings

• 008/09 = a
• The following field may not be in the record: 663
• 008/07 and 17 may be code n or a fill character ( | )
• 008/10, 12-13, and 32 must be code n
• 008/11 must not be code n
• 008/14 must be code b
• 008/15 must be code a
• 008/16 must be code b
• 008/28 may be code # or a fill character ( | )

Record containing alternate graphic representation fields

• Field 066 must be present
• The following roman fields may contain a subfield 6: 014,
  020, 022, 035, 050, 060, 070, 072, 073, 082, 083, 1XX, 260, 360, 4XX,
  5XX, 6XX, 7XX
• Record must contain at least one 880 field which contains nonroman
  form of the roman data in an associated field

Reference record

• 008/09 = b, c, or g
• Record must contain a Leader, a Directory, and the following
  variable fields: 001, 003, 005, 008, 040, 1XX
• One of the following reference note fields must be in the
  record: 260, 664, 666
• The following fields may not be in the record: 4XX, 5XX
• 008/06 must be code n or a fill character ( | )
• 008/10 may not be code n if 008/09 = b or c and 664
  or 666 is present
• 008/11 may not be code n if 008/09 = b or g and 260 is present
• 008/14-16 must be code b
• 008/12, 13, 29, and 33 must be code n
• 008/28 must be code or a fill character ( | )

Subdivision record

• 008/09 = d
• Record must contain a Leader, a Directory, and the following
  variable fields: 001, 003, 005, 008, 040, and 18X
• 008/07 must be code n or a fill character ( | )
• 008/10, 12, 13, 32, 33 must be code n
• 008/11 must not be code n
• 008/14-16 must be code b
• 008/17 must not be code n but may be a fill character ( | )

Node label record

• 008/09 = e
• Record must contain a Leader, a Directory, and the following
  variable fields: 001, 003, 005, 008, 040, and 1XX
• The record contains no tracings and references (260, 4XX, 5XX)
• 008/06 and 07 must be code n or a fill character ( | )
• 008/10, 12, 13, 17, 29, 32, and 33 must be code n
• 008/11 must not be code n
• 008/14-16 must be code b

• MARC Home Page
• Library of Congress Home Page