/BOLD
       /NOBOLD (default)

    Controls whether the boldface type specified in chapter and
    header titles in the input file appears in the table of contents.

    If you specify the /BOLD qualifier, the text flagged for boldface
    type in the body of the document is marked for overprinting in
    the finished table of contents.

    If you specify the /NOBOLD qualifier, the text flagged for
    boldface type in the document is not overprinted in the table
    of contents.