466 



DETERMINES in accordance with paragraph (5) of Article XVI 

 that these amendments are of such an important nature that any 

 Contracting Government which makes a declaration under para- 

 grai)h (4) of Article XVI and which does not accept the amendments 

 within a period of 12 months after the amendments come into force, 

 shall, ui)on the expiry of this period, cease to be a Party to the present 

 Convention. 



ANNEX I 



Add new Article VI bis as follows: 



Article VI Bis 



(1) Every tanker to which the present Convention ai)i)lies and for 

 which the building contract is placed on or after the date of coming 

 mto force of this Article shall be constructed in accordance with the 

 ])rovisions of Annex C. In addition, every tanker to which the i)rosont 

 Convention ai)])lics and for which the building contract is ])laced, 

 or in the absence of a building contract the keel of which is hiid or 

 which is at a similar stage of construction, before the date of coming 

 into force of this Article shall be required, within two years after 

 that dale, to com|)ly with the i)rovisions of Annex C, where such a 

 tanker falls into either of the following categories: 



(a) a tanker, the delivery of which is after 1 January 1977; or 



(b) a tnnker to which both the following conditions'apply: 

 (i) delivery is not later than 1 Janunry 1977; and 



(ii) the building contract is placed after 1 January 1972, or 

 in cases where no building contract has previously been . 

 placed, the keel is hiid or tlie tanker is at a similar stage of 

 construction, after 30 June 1972. 



(2) A tanker required under paragraph (1) of this Article to be 

 constrnc^ted in accordance with Annex C and so constructed shall 

 carry on board a certificate issued or authorized by the responsible 

 Contracting Government attesting sucli compliance. A tanker which 

 imder paragraph (I) of this Article is not recpiired to be constructed hi 

 accordance with Annex C shall carry on board a certificate to that 

 elfect issued or authorized by the responsible Contracting Govern- 

 ment, or if the tanker does comply with Annex C although not. re- 

 quired to do so, it may carry on board a certificate issued or authorized 

 by the responsible Contracting Government attesting such compliance. 

 A Contracting Government shall not permit such tankers under its 

 flag to trade unless the appropriate certificate has been issued. 



(3) Certificates issued under the authority of a Contracting Govei'u- 

 ment shall be accepted by the other Contracting Governments for all 

 puri)oses covered b}^ the present Convention. Thc}^ shall be regarded 

 by the other Contracting Governments as having the same force ns 

 certificates issued by them. 



(4) If a Contracting Government has clear grounds for believing 

 that a tanker required under i)aragra})h (1) of this Article to be con- 

 structed in accordance with Annex C entering ports in its territory or 

 using off-shore terminals under its control does not in fact com 1)1}'^ 

 with Aiuiex C, such Contracting Government may request consulta- 



