It has been noted that during recent port State control inspections in US ports, whereby MARPOL related deficiencies have been raised to the 15-ppm bilge alarm system, specifically related to entries made in the vessels‟ Oil Record Books (ORBs) not corresponding to the data being displayed by the 15-ppm bilge alarm/oil content meter.

In accordance with the IMO guidelines contained in MEPC.107 (49), paragraph 4.2.9, the 15 ppm Bilge Alarm should record date, time, alarm status, and operating status of the 15 ppm Bilge Separator. The recording device should also store data for at least eighteen (18) months and should be able to display or print a protocol for official inspections as may be required. In the event of the 15 ppm Bilge Alarm having to be replaced, means should be provided to ensure that the recorded data remains available on board for not less than 18 months.