This Natural profile parameter specifies the name of the load library from which programs are to be loaded dynamically when Natural is used under z/OS batch mode or TSO.

Possible settings	character string	Any valid file name, or 8-byte DDNAME of load library
Default setting	none
Dynamic specification	yes
Specification within session	no

Notes:

1. This Natural profile parameter only applies under z/OS batch mode and TSO.
2. Under z/OS, a JCL statement with a DDNAME that equals the LIBNAM setting also needs to be specified. By default, programs are loaded from the job steplib.