If the keyword OVERRIDE is added to a process (*PROCESS) statement, then the nominated assembler option is not overridden by specifications at a lower level of precedence. Furthermore, if there is a conflicting specification at a lower level of precedence, the assembler does not issue a warning message.

If an option specified on the process statement is an option listed in *PROCESS statement options, and a different value is supplied as an ASMAOPT or invocation option, then the ASMAOPT or invocation value is accepted, and the assembler issues a warning message.