1 The Marine Environment Protection Committee,
at its fifty-second session, adopted the revised MARPOL Annex II by
resolution MEPC.118(52), which includes
in regulation “Provisions on the control of discharge of Noxious
Liquid Substances” and specifically, in this context, restrictions
on the cleaning additives permitted for use in tank washing operations
as follows:
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“13.5.2 When small amounts of
cleaning additives (detergent products) are added to water in order to
facilitate tank washing, no additives containing Pollution Category X
components shall be used except those components that are readily
biodegradable and present in a total concentration of less than 10% of the
cleaning additive. No restrictions additional to those applicable to the
tank due to the previous cargo shall apply.”
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2 Attached hereto are the revised tank cleaning
additives guidance note and reporting from which were developed as
a consequence of the revised MARPOL Annex
II and approved by the Marine Environment Protection Committee
at its fifty-sixth session (9 to 13 July 2007). The present circular
supersedes MEPC/Circ.363.
3 Member Governments are invited to
bring this information to the attention of those companies submitting
data on tank cleaning additives to the BLG Sub-Committee through their
Administrations in order to determine whether they meet the requirements
of paragraph 13.5.2 of the revised MARPOL
Annex II.