Implicit scope terminators

At the end of any sentence, an implicit scope terminator is a separator period that terminates the scope of all previous statements not yet terminated.

An unterminated conditional statement cannot be contained by another statement.

Except for nesting conditional statements within IF statements, nested statements must be imperative statements and must follow the rules for imperative statements. You should not nest conditional statements.

Related references
RULES (Enterprise COBOL Programming Guide)