6.1 Maintenance of the corrosion prevention system
should be included in the overall ship's maintenance schemes. The
effectiveness of the corrosion prevention system should be verified
during the ship's life by the Administration or an organization recognized
by the Administration, in accordance with the Guidelines on the Enhanced
Programme of Inspections during surveys for bulk carriers and oil
tankers.
6.2 The most efficient way to preserve the corrosion
prevention system is to repair any defects found during the in-service
inspections (e.g. spot rusting, local breakdown at edges of stiffeners,
etc.). Re-coating of all the defective surfaces should be carried
out in accordance with the manufacturer's specifications.
6.3 A type of hard coating compatible with the
one used for construction should be applied. This compatibility should
be checked by the owner and the manufacturer involved in re-coating
operations.
6.4 If the required conditions for the application
of the original coating are not achievable, a coating more tolerant
of a lower quality of surface treatment, humidity and temperature
conditions, may be considered, provided that it is applied and maintained
in accordance with the manufacturer's specifications.
6.5 When coating is supplemented with cathodic
protection, the maintenance scheme should include the replacement
of the sacrificial anodes and the inspection of coating around the
anode supports.