OFFICERS AND MERCHANT SEAMEN 179 



vention (section 141 of this volume) revising or replacing that Con- 

 vention for the time being in force for the territory concerned. 



ARTICLE 3 



A certificate of qualification may be granted to any person who, 

 at the time of the entry into force of this Convention for the terri- 

 tory concerned, is performing the full duties of an able seaman or 

 leading deck rating or has performed such duties. 



ARTICLE 4 



The competent authority may provide for the recognition of cer- 

 tificates of qualification issued in other territories. 



ARTICLE 5 



The formal ratifications of this Convention shall be communicated 

 to the Director-General of the International Labour Office for 

 registration. 



ARTICLE 6 



1. This Convention shall be binding only upon those Members of 

 the International Labour Organization whose ratifications have been 

 registered with the Director-General. 



2. It shall come into force twelve months after the date on which 

 the ratifications of two Members have been registered with the Direc- 

 tor-General. 



3. Thereafter, this Convention shall come into force for any 

 Member twelve months after the date on which its ratification has 

 been registered. 



ARTICLE 7 



1. A Member which has ratified this Convention may denounce it 

 after the expiration of ten years from the date on which the Conven- 

 tion comes into force, by an act communicated to the Director-General 

 of the International Labor Office for registration. Such denuncia- 

 tion shall not take effect until one year after the date on which it is 

 registered. 



2. Each Member which has ratified this Convention and which does 

 not, within the year following the expiration of the period of ten years 

 mentioned in the f)receding paragraph, exercise the right of denuncia- 

 tion provided for in this Article, will be bound for another period of 

 ten years and, thereafter, may denounce this Convention at the expira- 

 tion of each period of ten years under the terms provided for in this 

 Article. 



ARTICLE 8 



1. The Director-General of the International Labor Office shall 

 notify all the Members of the International Labor Organization of 

 the registration of all ratifications and denunciations communicated 

 to him by the Members of the Organization. 



2. When notifying the Members of the Organization of the registra- 

 tion of the second ratification communicated to him, the Director- 

 General shall draw the attention of the Members of the Organization 

 to the date upon which the Convention will come into force. 



