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of Herbert R. Haar, Jr., the head of the IAPH delegation,*/ the IAPH 
-invited Contracting Parties to consider whether, even if dredged material 
might otherwise be subject to the prohibition of Annex I, there may never- 
theless be circumstances under which the dredged material may be safely 
disposed of in the marine environment if "special care" is taken in the 
disposal. This is the manner in which Annex II substances are treated 
under the Convention. They may be disposed of at sea under a "special 
permit”. 
CALL FOR STUDY BY THE SCIENTIFIC GROUP 
A majority of delegations agreed that the technical matters raised by the 
IAPH should be considered by the Scientific Group at its next intersession- 
al meeting in light of information to be supplied by the IAPH on possible 
measures to reduce the environmental impact of the disposal of dredged 
material at sea. LDC V/12/10.4. These technical matters are scheduled for 
consideration as Agenda Item 10 on the Provisional Agenda for the Fifth 
Meeting of the Scientific Group to be held at the Bedford Institute of 
Oceanography, Dartmouth/Halifax, Nova Scotia, Canada, from Monday, 4 May to 
Friday, 8 May, 1981. LDC/SG. V/1 (5 December 1980). 
FOCUS OF THE PRESENT PAPER 
This submission will discuss technical aspects of "special care" measures 
which may be used in the ocean disposal of polluted dredged material and 
will assess, from a scientific perspective, their potential effectiveness 
in minimizing adverse environmental impacts associated with the dumping. 
The submission will consider Annexes I and II of the Convention, and the 
dilemma facing affected States if Annex I is applied to categorically pro- 
hibit the ocean dumping of dredged material when there may be no other 
*/ Mr. Haar ts a member of the Ad Hoe Committee on Dredging of the IAPH; 
Chairman, Ad Hoe Dredging Committee of the American Association of 
Port Authorities, and Associate Port Director of New Orleans, USA. 
