The QMS at my company is moving towards ISO certification compliance. Our Engineering Department is now placing "UNCONTROLLED DOCUMENT" on all of it's drawings, and it is stated on every copy we print (as well as the digital versions we have access to). This is a new thing, as we have never had "UNCONTROLLED DOCUMENT" on any of our prints before. We do not have SWI's in place to guide production (at the moment) and are relying on the DWG's to guide production. The documents are, in fact, controlled documents with revision records, approvals, release dates, etc., and the hardcopies of the documents are controlled on the plant floor by: 1) our system of distribution, 2) audits against Master Lists to verify latest REV's, and 3) regulations against marking on the printed DWG's. Engineering Dept. insists that 'once the DWG's are printed, they are uncontrolled.' I do not agree as the system controls the placement, and updating, of the hardcopies. Is Engineering correct? Can we use the DWG's labeled "UNCONTROLLED DOCUMENT" to guide production/assembly processes and still be in compliance with ISO requirements?