(1) A certificate of competency or of service
                           in a capacity for which the Convention requires a certificate and
                           which before entry into force of the Convention for a Party is issued
                           in accordance with the laws of that Party or the Radio Regulations
                           shall be recognized as valid for service after entry into force of
                           the Convention for that Party.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           (2) After the entry into force of the Convention
                           for a Party, its Administration may continue to issue certificates
                           of competency in accordance with its previous practices for a period
                           not exceeding five years. Such certificates shall be recognized as
                           valid for the purpose of the Convention. During this transitional
                           period such certificates shall be issued only to seafarers who had
                           commenced their sea service before entry into force of the Convention
                           for that Party within the specific ship department to which those
                           certificates relate. The Administration shall ensure that all other
                           candidates for certification shall be examined and certificated in
                           accordance with the Convention.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           (3) A Party may, within two years after entry
                           into force of the Convention for that Party, issue a certificate of
                           service to seafarers who hold neither an appropriate certificate under
                           the Convention nor a certificate of competency issued under its laws
                           before entry into force of the Convention for that Party but who have:
                        
                        
                        
                        
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                                 (a) served in the capacity for which they seek
                                 a certificate of service for not less than three years at sea within
                                 the last seven years preceding entry into force of the Convention
                                 for that Party;
                              
                              
                              
                            
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                                 (b) produced evidence that they have performed
                                 that service satisfactorily;
                              
                              
                              
                            
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                                 (c) satisfied the Administration as to medical
                                 fitness, including eyesight and hearing, taking into account their
                                 age at the time of application.
                              
                              
                              
                            
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         For the purpose of the Convention, a certificate of service
                           issued under this paragraph shall be regarded as the equivalent of
                           a certificate issued under the Convention.