Maritime Security (MARSEC) Level 3 means the level for which further specific protective security measures shall be maintained for a limited period of time when a transportation security incident is probable, imminent, or has occurred, although it may not be possible to identfy the specific target. MARSEC 3 generally corresponds to Homeland Security Advisory System (HSAS) Threat Condition Red.

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Resources:

• Maritime Security Regulations (US Coast Guard)
• MTSA MARSEC Awareness Model Course
• USCG Port Operations Information for Safety & Efficiency (POISE)

Blog Tags: MARSEC 3, MARSEC, MARSEC Level, Homeland Security, Maritime Security, Port Security