(1) ISPS level 1 measures are the measures that should, under the ISPS Code, be implemented when maritime security level 1 is in force.
(2) ISPS level 2 measures are the measures that should, under the ISPS Code, be implemented when maritime security level 2 is in force.
(3) ISPS level 3 measures are the measures that should, under the ISPS Code, be implemented when maritime security level 3 is in force.