The process for inscription on the UNESCO World Heritage List is long, often lasting for many years. The prerequisite for successful inscription is the justification of outstanding universal value.
The criteria to assess this are defined in the “Operational Guidelines for the Implementation of the World Heritage Convention”. The essential conditions include the overarching criteria of authenticity and integrity of the site.
Ten further criteria listed in the guidelines serve to provide a more precise definition of outstanding universal value. To be inscribed on the World Heritage List, at least one of these criteria must be fulfilled. Criteria include a masterpiece of human creative genius or important interchange of human values on the development in architecture, town-planning or landscape design over a span of time or within a cultural area. Alongside justification of outstanding universal value, a description of the state of conservation and of the protection and management mechanisms are key components of the nomination dossier. In addition, a management plan must also be provided to ensure that the site will be protected for future generations.
The complete nomination dossier is then submitted by the State Party to the World Heritage Centre in Paris. German nominations are passed from the relevant state ministry to the Foreign Office via the Kultusministerkonferenz (Standing Conference of the Ministers of Education and Cultural Affairs), so that the file can be forwarded to the World Heritage Centre by the Permanent Delegation of Germany to UNESCO. The decision on whether to inscribe the property is made by the World Heritage Committee. The basis for this decision is a multistage assessment conducted by one of the international expert organisations (ICOMOS, IUCN, ICCROM) commissioned to undertake evaluations. The process lasts at least 18 months from submission to decision.