Yesterday, I received ISO 9001 Cert from CB. In Certificate, Issue date: 19 Dec 2021 and Expiry date: 19 Dec 2024.
There is something wrong, right? I think Expiry date must be 18 Dec 2024.
Which one is correct Expiry date of my certificate?
You should consider the correct expiry date the one expressed in your certificate. My reasoning is like yours. However, I checked several examples of certificates over the internet and I saw CB following your reasoning, and CB following your CB’s reasoning.
The following material will provide you with information about certification audits:
I, as auditor, will check if the device is calibrated and within the calibration period on the calibration label. A calibration period of one year is not a scientific decision is an estimation. Following that reasoning we can start to differentiate leap years from other years to decide the calibration cut-off date. I, as auditor, want to know if there is a system in place and that it works, and that rules are complied with. It seems to me that it is not important to consider a year as 365, 366, or 367 days, but whatever the definition is, that it is followed.