2.1.1 The renewal survey may be commenced at the
fourth annual survey and be progressed during the succeeding year
with a view to completion by the fifth anniversary date.
2.1.2 As part of the preparation for the renewal
survey, the survey programme should be dealt with in advance of the
survey. The thickness measurement should not be held before the fourth
2.1.3 The survey should include, in addition to
the requirements of the annual survey, examination, tests and checks
of sufficient extent to ensure that the hull and related piping is
in a satisfactory condition and is fit for its intended purpose for
the new period of validity of the Cargo Ship Safety Construction Certificate,
subject to proper maintenance and operation and to renewal surveys
being carried out.
2.1.4 All cargo holds, ballast tanks, including
double bottom and double-side tanks, pipe tunnels, cofferdams and
void spaces bounding cargo holds, decks and outer hull should be examined,
and this examination should be supplemented by thickness measurement
and testing, as required by 2.6 and 2.7, to ensure that the structural
integrity remains effective. The examination should be sufficient
to discover substantial corrosion, significant deformation, fractures,
damages or other structural deterioration.
2.1.5 All piping systems within the above spaces
should be examined and operationally tested under working conditions
to ensure that the condition remains satisfactory.
2.1.6 The survey extent of ballast tanks converted
to void spaces should be specially considered in relation to the requirements
for ballast tanks.