Hi, guys. Today when reading the standard, one question came to me. In Sub cl. 18.104.22.168, the standard says that "The organization shall retain appropriate documented information as evidence of fitness for purpose of the monitoring and measurement resources." And here is the question. Which kind of documented information can be regarded as evidence of fitness for purpose? Since 22.214.171.124 is part of ISO 9001, so I turned to TS 9002 for the answer. In TS 9002, the relevent content is as bellow: "Documented information should be available to demonstrate the fitness of purpose of the monitoring and measuring resources selected. This can include schedules outlining how often checks are needed to ensure valid results, or information demonstrating traceability to national standards or any alternative basis used." To be honest, it is not the answer I was expecting. In my opinion, the documented information demostrating the fitness, at least, should include the calibaration/verification records (i.e. sub cl. 126.96.36.199.1). And the frequency and traceability, 9002 mentioned, could be part of the documented information but they alone are not be sufficient for IATF 16949. When it comes to choose the suitable(or fit) gages, "1/10" principle should be used, at least, it is what I have been told. Thus maybe the documented information should at least include the evidence of the satisfaction regarding this "1/10" principle. Moreover, I also did the reality check. I didn`t find anything constructive in my company. So here I am. Looking forwards to your opinions.