80 
the Governments of Mexico, the Union of Soviet Socialist Republics, 
the United Kingdom of Great Britain and Northern Ireland and the 
United States of America who shall send certified copies thereof to all 
States. 
IN WITNESS WITEREOF the undersigned Plenipotentiaries, be- 
ine duly authorised thereto by their respective Governments have 
siened the present Convention. 
DONE in quadruplicate at London, Mexico City, Moscow and Wash- 
ineton, this twenty-ninth day of December, 1972. 
ANNEXES 
ANNEX I 
1. Organohalogen compounds. 
2. Mercury and mercury compounds. 
3. Cadmium and cadmium compounds. 
4. Persistent plastics and other persistent synthetic materials, for 
example, netting and ropes, which may float or may remain in suspen- 
sion in the sea in such a manner as to interfere materially with fishing, 
navigation or other legitimate uses of the sea. 
5. Crude oil, fuel oil, heavy diesel oil, and lubricating oils, hydraulic 
fluids, and any mixtures containing any of these, taken on board for 
the purpose of dumping. 
6. High-level radio-active wastes or other high-level radio-active 
matter, defined on public health, biological or other grounds, by the 
competent international body in this field, at present the Interna- 
tional Atomic Energy Agency, as unsuitable for dumping at sea. 
7. Materials in whatever form (e.g. solids, Hail: semi-liquids, 
gases or in a living state) produced for biological and chemical 
warfare. 
8. The preceding paragraphs of this Annex do not apply to sub- 
stances which are rapidly rendered harmless by physical, chemical or 
biological processes in the sea provided they do not: 
(i) make edible marine organisms unpalatable, or 
(ii) endanger human health or that of domestic animals. 
The consultative procedure provided for under Article XIV should 
be followed by a Party if there is doubt about the harmlessness of the 
substance. 
9. This Annex does not apply to wastes or other materials (e.g. 
sewage sludges and dredged spoils) containing the matters referred 
to in paragraphs 1-5 above as trace contaminants. Such wastes shall 
be subject to the provisions of Annexes IT and III as appropriate. 
ANNEX II 
The following substances and materials requiring special care are 
listed for the purposes of Article VI(1) (a). 
A Wastes containing significant amounts of the matters listed below : 
arsenic 
lead 
copper 
zinc v 
organosilicon compounds 
cyanides 
fluorides 
pesticides and their by-products not covered in Annex I. 
and their compounds 
