MARSEC Security Levels

Nationally, threat levels are assigned by Transport Canada Marine Security (TCMS).  

MARSEC stands for Marine Security. MARSEC levels are designed to easily communicate pre-planned responses to increased threat levels.

• MARSEC Level 1 — Appropriate security measures under normal operating conditions.
  
  
• MARSEC Level 2 — Increased security measures maintained for a heightened security threat or incident for a limited period of time.
  
  
• MARSEC Level 3 — Additional security measures when a security threat or security incident is probable or imminent.

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