2.1.1 All criteria shall be applied for all conditions
of loading as set out in part B, 3.3 and
3.4.
2.1.3 Where anti-rolling devices are installed
in a ship, the Administration shall be satisfied that the criteria
can be maintained when the devices are in operation and that failure
of power supply or the failure of the device(s) will not result in
the vessel being unable to meet the relevant provisions of this Code.
2.1.4 A number of influences such as icing of
topsides, water trapped on deck, etc., adversely affect stability
and the Administration is advised to take these into account, so far
as is deemed necessary.
2.1.5 Provisions shall be made for a safe margin
of stability at all stages of the voyage, regard being given to additions
of weight, such as those due to absorption of water and icing (details
regarding ice accretion are given in part
B, chapter 6 − Icing considerations) and to losses of
weight such as those due to consumption of fuel and stores.
2.1.6 Each ship shall be provided with a stability
booklet, approved by the Administration, which contains sufficient
information (see part B, 3.6) to
enable the master to operate the ship in compliance with the applicable
requirements contained in the Code. If a stability instrument is used
as a supplement to the stability booklet for the purpose of determining
compliance with the relevant stability criteria such instrument shall
be subject to the approval by the Administration (see part B, chapter 4 − Stability calculations
performed by stability instruments).
2.1.7 If curves or tables of minimum operational
metacentric height (GM) or maximum centre of gravity (VCG) are used
to ensure compliance with the relevant intact stability criteria those
limiting curves shall extend over the full range of operational trims,
unless the Administration agrees that trim effects are not significant.
When curves or tables of minimum operational metacentric height (GM)
or maximum centre of gravity (VCG) versus draught covering the operational
trims are not available, the master must verify that the operating
condition does not deviate from a studied loading condition, or verify
by calculation that the stability criteria are satisfied for this
loading condition taking into account trim effects.