Home Established 1997 · Lomé IV Convention One postal standard for the whole Caribbean region. The CPU Secretariat supports 25 Caribbean postal administrations — coordinating policy, training, and trade facilitation across the region. Member States About the Union 25 Caribbean postal administrations Plus partner administrations: 5Founded: 1997Headquarters: Castries, Saint Lucia 30 Total member administrations 28 CPU conferences held since 1997 4 Governing bodies of the Union 1997 CPU Convention signed, Saint Lucia Structure of the Union How the Union is governed. Set out in the CPU Convention, authority runs from ministerial policy down to day-to-day Secretariat operations. POLICY Council of Ministers Ministers responsible for postal services across member states set the Union’s policy direction.