307 



(b) The International Oil Pollution Prevention Certificate (1973) issued in 

 Iiursuaiice of Regulation 5 of Annex I of the present Convention shall be en- 

 dorsed to show that the ship has been surveyed in accordance with paragraph (2) 

 of this Regulation and that the arrangements are such as to allow compliance 

 with the provisions of this Annex. 



REGULATION 11 — REQUIKEMENTS FOR MINIMIZING ACCIDENTAL POLLUTION 



(1) The design, construction, equipment and operation of ships carrying in 

 bulk noxious liquid substances which are subject to the provisions of this Annex 

 shall be such as to minimize the uncontrolled release of such substances. 



(2) Pursuant to the provisions of paragraph (1) of this Regulation, each Con- 

 tracting Government shall issue, or cause to be issued, detailed instructions on 

 the design, construction, ecjuipment and operation of such ships. 



(3) In respect of chemical tankers, the instructions referred to in paragraph 

 (2) of this Regulation shall contain at least all the provisions given in the Code 

 for the Construction and E(iuipnient of Ships carrying Dangerous Chemicals in 

 P>ulk ^ adopted bv the Assemblv of the Organization in Resolution A.212 

 (VII).=" 



REGULATION 12 — REQUIREMENTS FOR STATIONARY SHIPS 



[The discharge into the sea of any sub.stance of Category A, B, or C as .speci- 

 fied in Regulation 3(1) of this Annex, from any stationary ship or other craft 

 operating in the marine environment, shall be prohibited]. 



Appendix I 



GUIDELINES FOR CATEGORIZATION 



Category A 



Substances — Which are bioaccumulated and liable to produce a hazard to 

 aquatic life or human health ; or which are highly toxic to aquatic life as ex- 

 pressed by TLm less than 1 ppm ; and additionally certain substances which are 

 moflerately toxic to aquatic life as expre.ssed by a TLm greater than 1 and less 

 than 10 i)pm when particular weight is given to additional factors in the hazard 

 I>rofile or to special characteristics of the substance. 



Catefforjf B 



Substances — Which are bioaccumubifrd with a sliort retention of the order of 

 one week or less; or wliich are liable to produce tainting of sea food; or which 

 are moderately toxic to aquatic life as expressed by TLm greater than 1 and 

 less than 10 ppm : and additionally certain substances which are slightly toxic 

 to aquatic life as exjjressed by a TLm grenter than 10 and less than KK) ppm when 

 particular weight is given to additional factors in the hazard ijrofile or special 

 cluiracteristics of substance. 



Category C 



Substances — Slightly toxic to aquatic life as expressed by TLm greater than 

 10 and less than 100 ppm ; and additionally certain substances which are prac- 

 tically non-toxic to aquatic life as expressed by a TLm greater than TOO and less 

 than 1.000 ppm when particular weight is given to additional factors in the 

 hazard profile or special characteristics of the sul)stance. 



'" The Code ■will bp expnnrlPfl to rovpr harpps. 



21 Provision may need to be madn for the adoption and Implementation of future amend- 

 ments to the Code. See draft Resolution 3. 



