The two subfields used in this 948 field are:

Subfield ╪a - type of cataloging copy:catalogers initials (use 3 initials)

Codes used in ╪a:

• c = CIP
• d = DLC
• m = member
• o = original
• p = problem copy (lacks LC call no. and/or LC subject headings)
• e3 = enhanced encoding level 3

If revisions are made to a record, cataloger should record that in the existing 948 field, starting with a 2^nd subfield ╪a r:

• r = revised

Other codes used in the subfield ╪ a of this 948 field are:

• l = latest entry (for serials - rarely used)
• u = URL checked and deleted from bib record (used briefly 1998-99; delete if found)
• x = retrospective conversion (OCLC copy)
• z = retrospective conversion, local record (entered from catalog card data)

Subfield ╪d date (month followed by year: MM/YYYY)

EXAMPLES

• 948   ╪a d:jec  ╪d  01/2007
• 948   ╪a m:lkd ╪d  10/2005 ╪a r:mrt ╪d  01/2000

Wording and capitalization should be exactly as used in example below. Note: Some programs used to extract information from the 948 field are case sensitive, so the words “send” and “to” must be in all lower case and “MARS” in all upper case.

EXAMPLE OF 948 AS INPUT BY CATALOGER (before authority control processing by BackStage.)

948   ╪z send to MARS

EXAMPLE OF 948 AFTER AUTHORITY CONTROL PROCESSING BY BACKSTAGE

948   ╪z MARS