After applying CA JCLCheck PTF SO01444, CA JCLCheck will no longer require the libraries containing the DB2 Call Attach Facility routines (programs DSNHLI2 and DSNALI) to be present in the JOBLIB or STEPLIB of the address space in which CA JCLCheck was invoked. As long as the DB2 job being 'checked' has access to the DSNHLI2 and DSNALI programs, CA JCLCheck can locate the DB2 Call Attach Facility interface routines and validate the DB2 job.