With reference to coating of dedicated seawater ballast tanks, This Administration has delegated the RO to apply MSC.1/Circ.1539 to replace IACS UI SC227
Regulation 3-2 – Protective coatings of dedicated seawater ballast tanks in all types of
ships and double-side skin spaces of bulk carriers
2 The following tanks should not be considered to be dedicated seawater ballast tanks
and should, therefore, be exempted from the application and requirements of the Performance
standard for protective coatings for dedicated seawater ballast tanks in all types of ships and
double-side skin spaces of bulk carriers (resolution MSC.215(82)), provided the coatings
applied in the tanks described in sub-paragraphs .2 and .3 below are confirmed by the coating
manufacturer to be resistant to the media stored in these tanks and provided such coatings
are applied and maintained according to the coating manufacturer's procedures.
.1 ballast tanks identified as "Spaces included in Net Tonnage" in the
International Tonnage Certificate (1969);
.2 seawater ballast tanks in passenger ships also designated for the carriage
of grey water or black water; and
.3 seawater ballast tanks in livestock carriers also designated for the carriage
of livestock dung.
