TMAS (Telemedical Assistance Service)

TMAS (Telemedical Assistance Service) is the international radio-medical advice service required under WHO + IMO framework. Each participating country runs a TMAS centre; the CIRM (Centro Internazionale Radio Medico) in Rome is the historical and most-used centre for merchant ships. Free to use; contactable via satellite phone, GMDSS, or standard telephone. Provides diagnosis + treatment guidance + arrangement of medical evacuation where warranted. TMAS use is documented in the ship medical log per MLC A4.1.