The written indications that are included or accompany the signalling panels of the public roads, and inscriptions, will appear in Castilian language and, in addition, in the official language of the autonomous community recognised in the respective statute of autonomy, when the signal is located in the territorial scope of said community.

The population centres and other place names will be designated in their official name and, when necessary for identification purposes, in Spanish.

In parts of the country this article is not respected because they only have traffic signals in the language of the autonomous community (Valencian, Galician, Catalan or Basque) when it should also be in Spanish.