The USER CALIBRATION label indicates that you should calibrate the test and measuring
instrument instead of sending the instrument to a calibration facility.
The INACTIVECALIBRATE BEFORE USE label is used when a piece of test equipment due
for recalibration will not be used for some time in the future.
The CALIBRATION NOT REQUIRED label is used on test instruments listed in the Metrology
Requirements List (METRL) as not requiring calibration.