A revised MARPOL Annex V will enter into force on 1 January, 2013, and will introduce stricter controls on the disposal of garbage from ships at sea.
The main revisions to the Annex are as follows:
1. New definitions have been introduced, including for animal carcasses, cooking oil, cargo residue and domestic waste.
2. All ships of 100 gt and above or certified to carry more than 15 people are required to have on board a garbage management plan (note: there is no requirement for the plan to be approved).
3. Ships 12 metres in length or more and fixed or floating platforms are to display placards notifying crew and passengers of the MARPOL Annex V requirements.
4. Ships of 400 gt and above and all fixed or floating platforms are to have on board and maintain a garbage record book in the format specified in MARPOL Annex V.
5. Discharges of any garbage from fixed or floating platforms and from any ship alongside or within 500 metres of a fixed or floating platform are prohibited. Food waste may be discharged from a fixed or floating platform provided it is more than 12 nm from land and the waste has been passed through a comminuter or grinder so that it can pass through a screen with openings no greater than 25 mm.
6. The discharge of garbage into the sea is prohibited except under certain circumstances when a ship is en route, as follows:
Outside special areas
Inside special areas
Note: the IMO is developing guidelines for determining which cargo residues and cleaning agents are harmful to the marine environment.
Reference : Lloyd's Register Of Shipping