§ 104.270 Security measures for restricted areas. ( a ) *General.* The vessel owner or operator must ensure the designation of restricted areas in order to: ( 1 ) Prevent or deter unauthorized access;
( 2 ) Protect persons authorized to be on board;
( 3 ) Protect the vessel;
( 4 ) Protect sensitive security areas within the vessel;
( 5 ) Protect security and surveillance equipment and systems; and
( 6 ) Protect cargo and vessel stores from tampering.
( b ) *Designation of Restricted Areas.* The vessel owner or operator must ensure restricted areas are designated on board the vessel, as specified in the approved plan. Restricted areas must include, as appropriate: ( 1 ) Navigation bridge, machinery spaces and other control stations;
( 2 ) Spaces containing security and surveillance equipment and systems and their controls and lighting system controls;
( 3 ) Ventilation and air-conditioning systems and other similar spaces;
( 4 ) Spaces with access to potable water tanks, pumps, or manifolds;
( 5 ) Spaces containing dangerous goods or hazardous substances;
( 6 ) Spaces containing cargo pumps and their controls;
( 7 ) Cargo spaces and spaces containing vessel stores;
( 8 ) Crew accommodations; and
( 9 ) Any other spaces or areas vital to the security of the vessel.
( c ) The vessel owner or operator must ensure that security measures and policies are established to: ( 1 ) Identify which vessel personnel are authorized to have access;
( 2 ) Determine which persons other than vessel personnel are authorized to have access;
( 3 ) Determine the conditions under which that access may take place;
( 4 ) Define the extent of any restricted area;
( 5 ) Define the times when access restrictions apply; and
( 6 ) Clearly mark all restricted areas and indicate that access to the area is restricted and that unauthorized presence within the area constitutes a breach of security.
( d ) *Maritime Security (MARSEC) Level 1.* The vessel owner or operator must ensure the implementation of security measures to prevent unauthorized access or activities within the area. These security measures may include: ( 1 ) Locking or securing access points;
( 2 ) Monitoring and using surveillance equipment;
( 3 ) Using guards or patrols; and
( 4 ) Using automatic intrusion detection devices, which if used must activate an audible and/or visual alarm at a location that is continuously attended or monitored, to alert vessel personnel to unauthorized access.
( e ) *MARSEC Level 2.* In addition to the security measures required for MARSEC Level 1 in this section, at MARSEC Level 2, the vessel owner or operator must also ensure the implementation of additional security measures, as specified for MARSEC Level 2 in the approved VSP. These additional security measures may include: ( 1 ) Increasing the frequency and intensity of monitoring and access controls on existing restricted access areas;
( 2 ) Restricting access to areas adjacent to access points;
( 3 ) Providing continuous monitoring of each area, using surveillance equipment; and
( 4 ) Dedicating additional personnel to guard or patrol each area.
( f ) *MARSEC Level 3.* In addition to the security measures required for MARSEC Level 1 and MARSEC Level 2, at MARSEC Level 3, the vessel owner or operator must ensure the implementation of additional security measures, as specified for MARSEC Level 3 in the approved VSP. These additional security measures may include: ( 1 ) Restricting access to additional areas; and
( 2 ) Searching restricted areas as part of a security sweep of the vessel.