Part 120 sets out the permitted operational discharges of oil from ships into the sea and provides for reporting of non-operational discharges to the appropriate coastal authorities. The permitted discharges differ according to whether the oil is the residue of a cargo carried by an oil tanker or is drainage from the machinery space of a ship (oily bilge water). The Part incorporates an inclusive list of the various categories of mineral hydrocarbon falling within the definition of oil.
Part 120 gives effect to standards found in Regulations 4, 15 and 34 of Annex I of MARPOL 73/78 and to that instrument's Protocol I.
Marine Protection Rules Part 120: Discharge of Oil [PDF: 2.04Mb, 27 pages]
Amendment to Part 120, 2009 [PDF: 327Kb, 50 pages]
Amendment to Part 120, 2008 [PDF: 485Kb, 49 pages]
Amendment to Part 120, 2006 [PDF: 324Kb, 16 pages]
Original rule, 1998 [PDF: 2.44Mb, 31 pages]
Part 120 came into force on 20 August 1998.
This part was first amended by Marine Protection Amendment Rules (Parts 120, 121A, 123A and 170), in 2006.
This part was most recently amended by Marine Protection Amendment Rules (Parts 120, 121A, 122, 123A and 123B) in 2008.