Administration
As a commune, Arica is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years. The 2008-2012 alcalde is Waldo Sankán Martínez (Independent).
Within the electoral divisions of Chile, Arica is represented in the Chamber of Deputies by Mr. Nino Baltolu (UDI) and Mr. Orlando Vargas (PPD) as part of the 1st electoral district, which includes the entire Arica and Parinacota Region. The commune is represented in the Senate by Fulvio Rossi Ciocca (PS) and Jaime Orpis Bouchon (UDI) as part of the 1st senatorial constituency (Arica and Parinacota Region and Tarapacá Region).
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