MAS means the Maritime Assistance Service as defined in resolution A.950(23).
Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance
MAS means a maritime assistance service, as defined in resolution A.950(23), responsible for receiving reports in the event of incidents and serving as the point of contact between the shipmaster and the authorities of the coastal State in the event of an incident.
Source: IMO Resolution A.949(23), Guidelines on places of refuge for ships in need of assistance, 5 March 2004, International Maritime Organization. Regulatory Guidance