13.0 Scope of headings displayed in the Subject Authority File
The Subject Authority File contains main headings, cross references, and main heading/subdivision combinations established by the Library. However, not all valid headings and subdivisions are displayed in the printed versions of the list or the machine-readable Subject Authority File. The following categories of authorized headings and/or subdivisions, except where they serve as patterns or examples or when they require unique cross references, are excluded from the list: headings that reside in the Name Authority File, certain music headings with established citation orders, and combinations of headings with free-floating phrases or subdivisions.
13.1 Headings and cross references included in the Subject Authority File
13.2 Headings omitted from the list
13.3 Subdivisions omitted from the list
See also: