What is maritime information systems?
The Maritime Safety & Security Information System (MSSIS) is a freely-shared, unclassified, near real-time data collection and distribution network. Its member countries share data from Automatic Identification System (AIS), coastal radar, and other maritime-related systems.
What is the purpose of AIS?
Automatic Identification System (AIS) is a system that provides real-time information such as tracking and monitoring for ships and other machine vessels designed to improve maritime safety.
What is AIS in marine navigation?

Automatic identification systems (AIS) transponders are designed to be capable of providing position, identification and other information about the ship to other ships and to coastal authorities automatically.
What does ISPS Code stand for?
International Ship and Port Facility
The International Ship and Port Facility (ISPS) Code Having entered into force under SOLAS chapter XI-2, on 1 July 2004, the International Ship and Port Facility Security Code (ISPS Code) has since formed the basis for a comprehensive mandatory security regime for international shipping.
What is maritime safety and security?

MARITIME SAFETY: is concerned with the prevention of accidental damage or incidents of marine environmental pollution or loss of life at sea through the development of technical support systems; the auditing of recognised classification societies; development of common methodologies for the investigation of maritime …
What are the 3 dynamic information of an AIS?
AIS transmits, automatically and at set intervals, dynamic information relating to the ship’s course, speed and heading; static information related to the ship’s name, length, breadth; and voyage-related details such as cargo information and navigational status (e.g. underway or at anchor).
What are precautions when using AIS?
Precautions while using AIS in collision avoidance
- AIS is an additional source of navigational information. It does not replace other nav aids Should rely solely on AIS.
- Watches must be kept as per STCW.It does not have any impact on the composition of watch arrangement.
- Swapping of targets.
What is AIS and DSC?
AIS also transmits a boats’ specific MMSI number and the vessels name allowing personal contact by Digital Selective Calling (DSC), avoiding vague descriptions (e.g. “ship off my port bow”). This can help to give warnings of close proximity or course corrections.
What are the different types of AIS?
For a shipboard fitting there are three types of AIS equipment, Class A, Class B and receive only. Class A is intended for vessels where the fit is mandatory. Class A transmits more information, more frequently and at higher power than Class B.