Regulation 18(6) reads
as follows:
-
The bunker delivery note shall be accompanied by
a representative sample of the fuel oil delivered taking into account
guidelines developed by the Organization.footnote The sample is to be sealed and signed by
the supplier's representative and the master or officer in charge
of the bunker operation on completion of bunkering operations and
retained under the ship's control until the fuel oil is substantially
consumed, but in any case for a period of not less than twelve months
from the time of delivery.