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feasible alternative means of disposal. The submission will then survey 
the extent to which, through the use of particular “special care" measures 
in dumping, dredged material containing Annex I substances may be safely 
disposed in the marine environment to the same extent as substances 
permitted to be dumped under Annex II.*/ 
Bearing in mind Contracting Parties’ recognition that, scientifically, con- 
clusive proof as to harmlessness is impossible, and that studies and tests 
can only provide evidence for judging whether the environmental risk is ac- 
ceptable or not [LDC IV/12, Annex 5 (Appendix II, Introduction)], this sub- 
mission addresses the extent to which the use of "special care" measures 
will provide data sufficient to demonstrate that the environmental risk is 
"acceptable". 
*/ The emphasis of. this consideration ts upon the "special care" measures 
themselves. Whether any one or more of these measures would be econo- 
mically feasible or practicable in a given case would necessarily have 
to be determined by ports and affected States under the facts and cir- 
cumstances of that case. 
