1.1 GeneralThis part of ISO 28005 contains technical specifications that facilitate efficient exchange of electronicinformation between ships and shore for coastal transit or port calls. It is intended to cover safety and security information requirements related mainly to the relationships between the ship and the port and coastal state authorities as defined in this subclause.This part of ISO 28005 contains the definition of core data elements for use in electronic port clearance (EPC) messages. It contains definitions of core data elements for electronic messaging between ships and shore in the areas of safety, security and marine operations. It does not