3.5.1 Pumps, ballast lines,
vent lines and other similar equipment serving permanent ballast tanks
shall be independent of similar equipment serving cargo tanks and
of cargo tanks themselves. Discharge arrangements for permanent ballast
tanks sited immediately adjacent to cargo tanks shall be outside machinery
spaces and accommodation spaces. Filling arrangements may be in the
machinery spaces provided that such arrangements ensure filling from
tank deck level and non-return valves are fitted.
3.5.2 Filling of ballast in
cargo tanks may be arranged from deck level by pumps serving permanent
ballast tanks, provided that the filling line has no permanent connection
to cargo tanks or piping and that non-return valves are fitted.
3.5.3 Bilge pumping arrangements
for cargo pump-rooms, pump-rooms, void spaces, slop tanks, double-bottom
tanks and similar spaces shall be situated entirely within the cargo
area except for void spaces, double-bottom tanks and ballast tanks
where such spaces are separated from tanks containing cargo or residues
of cargo by a double bulkhead.