Once you are certain that you are using a competent laboratory to report
the results of your calibrations, you can be more confident that the reported
errors are indeed correct. This ensures that you are neither wasting time
performing impact studies that might not have been necessary nor are you
unaware of a situation where an impact study was needed but you were
not informed. Either of these situations can be very costly: the former
because of wasted resources (also known as a “false reject” situation) and
the latter because of potentially bad consequences due to lack of impact
analysis (also known as a “false accept” situation)