Control of documents

A documented procedure shall be established to define the controls needed:

• to approve any documents for adequacy prior to use.


• to review, update and re-approve the documents whenever necessary.


• to ensure that changes and current version status are identified.


• to ensure that relevant versions of the documents are available (documentation history).


• to ensure that documents remain legible and readily identifiable.


• to ensure that documents of external origin are identified and their distribution controlled.


• to prevent the unintended use of obsolete documents.