It is the policy of the regional government to avoid twinning existing roads (and thus replacing them with the upgraded "autovía"), so instead all autovías are built from scratch even if they are parallel to the old road. All Extremaduran highways are currently named EX-An, with white identifiers on blue background. Some of them have branches named EX-An-Rm, which also have white-on-blue identifiers, but such branches need not be highways themselves even if they are built concurrently with the main road.