I have a question that I would like the community send me their feedback. We are in the process of obtaining our ISO 9001:2008 certification and the subject of M&TE has come up. We corrently have a M&TE program that uses NIST traceible standards and the calibration intervals are working fine. We however do NOT currently maintain a useage log for all of our M&TE. In reading clause 7.6 of the standard, I do not see any specific requirement that states that we need to maintain a usage log. I know that many people in different industries do maintain a usae log, but if the standard does not mandate it, then way develop a log?