The comments field follows the delimiter characters.

For JES2, code any comments in columns 4 through 80. (A blank must follow the delimiter characters.)

For JES3, text in columns 3 through 80 is a comment, except when the default delimiter (/*) is used with an //XMIT statement causing the text starting in column 3 to be recognized as a JECL statement (for example, /*ROUTE, /*JOBPARM). This includes JES2 commands (/*$command) except that any command prefix other than $ is considered a comment instead of a command.

To avoid ambiguity in these cases, IBM recommends that you either start comments in column 4 or use a delimiter other than the default on the //XMIT statement.