The rules governing use of this trade mark relate to use of a name as a “designation of origin”. The trade mark certifies that products identified by the name and symbol “designation of origin” have the following three main characteristics:
- They originate in a specific place, region or, in exceptional cases, a country;
- Their quality or other characteristic is essentially or exclusively due to a particular geographical environment; and
- The production steps all take place in the defined geographical area.