4.1 In addition to the provisions required by
Articles and regulations of the Convention, the owner/operator may
include in the Plan, as appendices, additional information such as:
provision of additional diagrams and drawings, shipboard equipment
and reference materials. National or regional requirements that differ
from the Convention may also be recorded for reference.
4.2 Non-mandatory information may also include
manufactures manuals (either as extracts or complete) or reference
to the location on board of such manuals and other relevant material.
4.3 The ballast water management plan may
include contingency measures developed taking into account guidelines developed by the
Organizationfootnote.