TMAS (Telemedical Assistance Service)
Abbreviation: TMAS
The 24/7 free international radio-medical advice service used by ships worldwide for medical emergencies at sea.
Quick facts
- Main centre
- CIRM Rome (+39 06 5923333)
In practice
Master or Medical Officer calls TMAS on any serious medical event; transcript retained in ship's medical log. Free service; use liberally.
Regulatory detail & full definition
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.
Authoritative source: CIRM (Rome TMAS) ↗
Related
Source: WHO + IMO framework
High confidence
Editorial confidence: how we grade.