ENVIRONMENT DIVISION

In the ENVIRONMENT DIVISION, the OBJECT-COMPUTER, SPECIAL-NAMES, and FILE-CONTROL paragraphs are affected by the use of ASCII-encoded files.

OBJECT-COMPUTER and SPECIAL-NAMES paragraphs
When at least one file in the program is an ASCII-encoded file, the alphabet-name clause of the SPECIAL-NAMES paragraph must be specified; the alphabet-name must be associated with STANDARD-1 or STANDARD-2 (for ASCII or ISCII collating sequence or CODE SET, respectively).
FILE-CONTROL paragraph
For ASCII files, the ASSIGN clause assignment-name has the following format:
I-O-CONTROL paragraph
The assignment-name in a RERUN clause must not specify an ASCII-encoded file.

Parent topic: ASCII considerations