Per ISO9001 perhaps. However, the usual cert, even from such companies at Mitutoyo, is not worth the paper it is printed on, and here is why.
To be a traceable calibration, there must be documentation of the next step up in the traceability, and stated uncertainties for each measurement. One other thing, the so-called NIST numbers are NOT valid for traceability, UNLESS they can be linked to the calibration of that specific standard used to calibrate the calipers with a specific date and uncertainty.
If that information is provided, then go with it. If not, send it to an accredited cal lab, accredited for that type of measurement.
Hope this helps.