Notification of document changes is dependent on the way the organisation manages it’s distribution of documents. Some document controllers might keep a register showing who has been given controlled copies of certain documents, whilst some might use an online system with email distribution to a specific mailing list etc. Whichever way the documents are distributed, the document controller should follow the same procedure and ensure that any person who was given access to the original document is informed when changes have been made. See section G regarding superseded and obsolete documents.