5.1 No person should open or enter an enclosed
space unless authorized by the master or the nominated responsible
person and unless the appropriate safety procedures laid down for
the particular ship have been followed.
5.2 Entry into enclosed spaces should be planned
and the use of an entry permit system, which may include the use of
a checklist, is recommended. An Enclosed Space Entry Permit should
be issued by the master or the nominated responsible person, and completed
by the personnel who enter the space prior to entry. An example of
the Enclosed Space Entry Permit is provided in the appendix.