The Catalan Agreement of Progress (Catalan: Entesa Catalana de Progrés, ECP) is a union of center-left and left wing and Catalan political parties in Catalonia. The union consists of three parties: Socialists' Party of Catalonia (Partit dels Socialistes de Catalunya), Initiative for Catalonia Greens (Iniciativa per Catalunya Verds) and United and Alternative Left (Esquerra Unida i Alternativa).