Natural programs using IMS

I have a natural program which does not include any IMS calls in the program. Its a batch program which gets executed through JCL.
But in my jcl, the PSB parameter is coded… say for eg


Why the PSB parameter is coded here, if the program actually does n’t include any IMS calls

Thanks in advance

Noone here has written that piece of JCL, so this is a question you should ask the person who did :roll: