A "combined chemical/oil tanker complying with the provisions
of the IBC Code" is a tanker that holds both
a valid IOPP certificate as a tanker and a valid certificate of fitness
for the carriage of dangerous chemicals in bulk, i.e. a tanker that
is certified to carry both oil cargoes under MARPOL Annex I and Chemical cargoes in chapter 17 of the IBC Code either as full or
part cargoes. The Technical provisions should be applied to ballast
tanks of combined chemical/oil tankers complying with the provisions
of the IBC Code.