Within national waters, rivers, ports and roads, exchange of information in connection with the above is to be maintained in accordance with Prefectura Naval (Coastguard) Ordinance 6/82 known under the acronym 'SECOSENA' or Communications Service for Navigational Safety (Servicio de Comunicaciones para la Seguridad de la Navegación). Furthermore this system is complemented by its sub-system 'CONTRASE' (Control de Tráfico y Seguridad) or Safety and Traffic Control. Search and Rescue (SAR) operations are coordinated by the Argentine Navy (see paragraph on SAR).
Routine reporting in coastal waters
- Upon entering national waters: name of ship, flag, call sign, length, breadth, draft, speed, bound from, proceeding to, position, type of cargo, course and if a Doctor is carried on board.
- Upon departing national waters: name of ship, flag, call sign, speed, destination, position and course.
- Upon entering port: name of ship, flag, call sign, time and place of berthing.
- Upon leaving port: name of ship, flag, call sign, length, breadth, draft, speed, destination, course, type of cargo and if a doctor is available onboard.
Routine reporting in rivers
- Upon entering an area under the responsibility of an FS station: name of ship, flag, call sign, length, draft, speed, bound from, proceeding to. If vessel is coming from an adjacent FS area it should only report: name, flag and call sign.
- Upon leaving an FS station's area, name, flag and call sign should be reported.
- Upon entering port: name, call sign.
Once inside a Prefectura Naval (coastguard) controlled system, the local pilot takes over communications in Spanish.