13.1.1 The Convention recognizes that it may be
necessary to examine containers more frequently than every 30 months
when they are subject to frequent handling and transhipment. It should
be borne in mind, however, that any significant reduction in the 30-month
interval between examinations would create severe examination control
problems. It should be noted that where containers are subjected to
frequent handling and transhipment they are also liable to be subjected
to frequent checking.
13.1.2 Therefore, in determining whether it is
acceptable that the interval between examinations under the Convention
should be the maximum of 30 months, proper account should be taken
of intermediate examinations, having regard to their extent and to
the technical competence of the persons by whom they are performed.