The Vienna Agreement, concluded in Vienna in 1973 and amended in 1985, establishes a classification (the Vienna Classification) for marks that consist of, or contain, figurative elements.
The competent offices of Contracting States must indicate in official documents and in any publication they issue in respect of the registration of marks the numbers of the categories, divisions and sections of the Classification to which the figurative elements of those marks belong.
The Vienna Agreement created a Union, which has an Assembly. Every State that is a member of the Union is a member of the Assembly. Among the most important tasks of the Assembly is the adoption of the biennial program and budget of the Union.
The Agreement also set up a Committee of Experts in which all members of the Union are represented. The main task of the Committee is the periodical revision of the Classification.
The Agreement is open to States party to the Paris Convention for the Protection of Industrial Property (1883). Instruments of ratification or accession must be deposited with the Director General of WIPO.