Any EXEC parameter (except PGM) can be overridden. For example, the PARM= and COND= parameters can be added or, if present, respecified by including them in the EXEC statement calling the procedure. The JCL notation to specify these parameters is:

//ASM EXEC   PROC=ASMACLG,PARM.C=(NOOBJECT),COND.L=(8,LT,stepname.c)

stepname identifies the EXEC statement within the cataloged procedure (ASMACLG) to which the modification applies.