If explicitly referenced, a paragraph-name must not be duplicated within a section. When a paragraph-name is qualified by a section-name, the word SECTION must not appear. A paragraph-name need not be qualified when referred to within the section in which it appears. A paragraph-name or section-name appearing in a program cannot be referenced from any other program. A section-name, described in Section, is the highest (and only) qualifier available for a paragraph-name and must be unique.
References to Procedure Division Names - Format 1 >>-paragraph-name--+----------------------+-------------------->< '-+-IN-+--section-name-' '-OF-'
References to Procedure Division Names - Format 2 >>-section-name------------------------------------------------><