Road signs in Chile are regulated in the Manual de Señalización de Tránsito, which is based on both the United States' MUTCD and the Vienna Convention on Road Signs and Signals, to which Chile is a signatory.
Chile uses yellow diamonds for warning signs in common with most of the rest of the Americas.
Formerly, Highway Gothic was the official typeface on Chile's road signs.
This includes marking one-way streets, mandatory turns and lane control.
The authorization section includes signs informing road users of actions that are allowed.