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ANNEXES I AND II: THE BASIS FOR CLASSIFICATION 
CLASSIFICATION BY CATEGORIZATION 
The Convention seeks to achieve protection of the marine environment 
through a range of restrictions applicable to different categories of 
waste, depending upon their properties. Article IV(a) of the Convention 
prohibits the dumping of waste or other matter listed in Annex I unless the 
waste is either “rapidly rendered harmless" upon disposal or contains Annex 
I substances as “trace contaminants." Article IV(b) permits the dumping of 
waste or other matter listed in Annex II, but requires a special permit and 
the exercise of "special care" in the disposal. Article IV(c) authorized 
the dumping of all other wastes or matter, provided a prior “general per- 
mit" is obtained. 
The issue of concern to the IAPH--and the further study of which has been 
directed by Contracting Parties--arises under Annex I. The concern is that 
Annex I might be construed to categorically prohibit the ocean dumping of 
dredged material containing Annex I substances even though the dredging may 
be essential and there may be not other practicable alternative means or 
methods of disposal. 
Paragraphs 8 and 9 of Annex I provide exceptions to the Annex I prohibition 
where Annex I substances are "rapidly rendered harmless" (para. 8), or are 
present as "trace contaminants" (para. 9).*/ But where the exceptions do 
not apply, the IAPH submits that consideration should be given to whether, 
through use of "special care" measures, the dredged material may never 
*/ At the Third Consultative Meeting, Contracting Parties adopted "Interim 
Guidelines for the Implementation of Paragraphs 8 and 9 of Annex I to 
the London Dumping Convention", LDC III/12, Annex 6. Paragraphs B(4) 
and (5) of the Interim Guidelines define the basts for evaluating 
"harmlessness" and "trace contaminants". 
