Comment statement
In addition to making any JCL modifications requested in the RECOVER statement and adding message statements, the selected RECOVER statement is changed to a comment statement. Therefore, the RECOVER statement is treated as such only the first time. You could, however, add the RECOVER statement again using the ADDPROC parameter.
Note: An automatic recovery statement is commented only
when the statement has matched a reported error, and the recovery
actions have been initiated successfully. Statements that do not match
the error remain in the JCL as candidates for subsequent failures.