Maritime English
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What is Alter Course?

Alter Course Instruction to change the vessel’s current heading in order to avoid danger or comply with traffic management.

Source: IMO SMCP, STCW Convention, SOLAS, COLREG

How is “Alter Course” Used in Practice?

Bulk carrier Europa, this is VTS Zeebrugge: alter course ten degrees to port to avoid crossing traffic lane near buoy Kilo.

Certification Exam Relevance

STCWMarlins TestISF WatchkeeperGMDSS

Who Needs to Know This Term?

  • Deck Officers
  • Engine Officers
  • Masters

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Frequently Asked Questions

What is Alter Course?

Instruction to change the vessel’s current heading in order to avoid danger or comply with traffic management.

Where can I learn this term for free?

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