End User Undertakings (EUU) - FAQs - BISSometimes we are unable to obtain an End User Undertaking (EUU) from our end- user. … The EUU should be completed and signed by a person in authority (ie a …http://www.berr.gov.uk/whatwedo/europeandtrade/strategic-export-control/licensing-policy/ecofaqs/page46250.html