This line from a well know 1970s song, sums up the approach to calibration I see hundreds of time. Worse, it seems that auditors make calibration into a target rich environment for "Majors" and "minors", when in truth, nothing's broken or needs fixed (except maybe peoples' understanding. Firstly, calibration rarely has anything to do with the passage of time! It's about USE. I'm pretty certain that my good friend Brad (sorry, Dr. Brad) will confirm that, some equipment could be used once or twice in a year, fail to be recalled at the specified date, yet be totally fine for use. On the other hand, experience shows that using some types of gauge on high frequency part inspection on threads, can wear out a screw plug gauge in a matter of weeks! Put an annual calibration sticker on that and guess what? You're in a world of hurt! Trust me, been there done that! So auditors who get excited and write non-conformities about recalls being done on time need to stop and think again. Just as with their car, if it was parked on the driveway and did 0 miles in 6 months (low mileage lease?), why would you change the oil? Drive 10,000 miles last month? Better stop by the oil change place NOW!