The ‘Certificate for the Customs Authorities’ of the IAA aims at facilitating the international free movement of works of art. It basically refers to two agreements: ‘The Florence Agreement’ – The UNESCO Agreement on the Importation of Educational, Scientific and Cultural Materials (1950) / the ‘Protocol of Nairobi’ (1976) and ‘The Brussels Customs Convention’ (1961). 
The Certificate is recommendatory, but quite helpful for the purpose of importing works of art.
Please contact the IAA office (email: This email address is being protected from spambots. You need JavaScript enabled to view it.) for further information.