Any sign that serves to distinguish the products or services of one enterprise from those of other enterprises and can be represented graphically may constitute a product trademark or service trademark.
The principal mission of the State Signs Service, ascribed to the OMPA in 2000, is to safeguard the proper use of state signs to avoid incorrect use that could cause confusion in the public mind or detriment to the institutions represented by the state signs.
".ad" domain names
The use of a domain name under the country code ".ad" involves the use of an abbreviated form of the name "Principality of Andorra", i.e. the use of a state sign, which could imply a use with commercial effects or as part of a trademark.