FYI/FWIW: The statements you quoted only repeat the field definitions for 672 and 673 in MARC 21 Format for Authority Data. They are not PCC policy per se. The scope of application is as you have repeated it.
Carroll N. Davis, ABA, U.S. Arts, Sciences & Humanities Division, Library of Congress
Opinions are my own, not necessarily
those of the Library of Congress.
A question came to mind as I was reading the new DCM Z1 instructions on the 672 and 673 fields. The first sentence of the guidelines for both fields reads in part: “…the entity represented by the 100, 110, 111, or 151 in the name authority record.” I take it then that 672s and 673s are not used in records for works and expressions as no mention is made of the 130 field?
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