Amendments to MARPOL Annex V with respect to garbage management will enter into force on 1 January 2013. Ships of 100 gross tonnage and above, or certified to carry 15 persons or more, and fixed or floating platforms are required to have on board, by 1 January 2013, a new or revised Garbage Management Plan complying with resolution MEPC.201(62). The plans are not required to be approved by or on behalf of the Administration. Additionally, ships of 400 gross tonnage and above, or certified to carry 15 persons or more engaged in voyages to ports or offshore terminals under the jurisdiction of another party to MARPOL, and fixed or floating platforms, are also required to carry a Garbage Record Book. Significant revisions of the requirements include prohibition of discharge of (1) cargo hold cleaning agents and additives in hold wash water and (2) incinerator ash (which had previously been allowed to be discharged outside of Special Areas 12 nautical miles or more from the nearest land provided it did not contain toxic or heavy metal residues from plastic products) regardless of the area of operation. Also, the lower threshold of ship tonnage for the carriage of a plan has been reduced from 400 gt to 100 gt. To assist owners in complying with the requirements of the revised regulations.