Doors should generally open outwards to provide additional
security against the impact of the sea. Doors which open inwards should
be exceptionally approved.
Portable sills should be avoided. However, in order to facilitate
the loading/unloading of heavy or bulky spare parts, portable sills
may be fitted on the following conditions:
Whenever the sills are replaced after removal, the weathertightness
of the sills and related doors should be verified by hose testing.
The dates of removal, replacing and hose testing should be recorded
in the ship's log-book.