Just wondering if any other companies are in the same situation. In our QMS, we reference a lot of external documents (standards, guidance's, any documents used to develop our SOPs etc) in our SOPs. We give each standard a number and reference that number in our procedures. We dont control the revision of the number (so for example, when a new version of the standard, external document is update, we assign a new number and obsolete the older one). We complete a review of the list every 6 months to ensure currency. We assess the gaps if there are newer versions/revisions released. However, then we have to update all our documents to update the newer reference. As our QMS is developing and with further regulations, this process is getting harder to manage. Just wondering what other companies do to manage this. We tried removing the references from our procedures but regulators have given us findings for not documenting them in the relevant SOPs.