CSU is an instance that integrates policies, programs, efforts and wills of higher level union organizations at the subregional level with an active presence in Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama and the Dominican Republic, which brings together 31 organizations unions, one of the most representative in each country, is the largest union organization in the subregion. Whose Mission is to articulate union efforts in the subregion, achieve political leadership and advocacy and take a position in the face of national and subregional challenges that arise, in the context of regional political and commercial integration.