StacksVerified U.S. regulatory reference

33 CFR §104.290

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
For each Maritime Security (MARSEC) Level, the vessel owner or operator must ensure the Vessel Security Officer (VSO) and vessel security personnel are able to:
  1. (a)Respond to security threats or breaches of security and maintain critical vessel and vessel-to-facility interface operations, to include:
    1. (1)Prohibiting entry into affected area;
    2. (2)Denying access to the vessel, except to those responding to the emergency;
    3. (3)Implementing MARSEC Level 3 security measures throughout the vessel;
    4. (4)Stopping cargo-handling operations; and
    5. (5)Notifying shoreside authorities or other vessels of the emergency;
  2. (b)Evacuating the vessel in case of security threats or breaches of security;
  3. (c)Reporting security incidents as required in § 101.305;
  4. (d)Briefing all vessel personnel on possible threats and the need for vigilance, soliciting their assistance in reporting suspicious persons, objects, or activities; and
  5. (e)Securing non-critical operations in order to focus response on critical operations.