Special Level-Numbers

Special level-numbers identify items that do not structure a record. The special level-numbers are:
66
Identifies items that must contain only a RENAMES clause; such items regroup previously defined data items. (For details, see RENAMES Clause.)
77
Identifies data item description entries — independent Working-Storage, Local-Storage or Linkage Section items that are not subdivisions of other items, and are not subdivided themselves. Level-77 items must begin in Area A.
88
Identifies any condition-name entry that is associated with a particular value of a conditional variable. The condition-name entry must contain only a VALUE clause. (For details, see VALUE Clause.)
Note: Level-77 and level-01 entries in the Working-Storage, Local-Storage and Linkage Sections that are referenced in the program must be given unique data-names, because neither can be qualified. Subordinate data-names that are referenced in the program must be either uniquely defined, or made unique through qualification. Unreferenced data-names need not be uniquely defined.