10.18.9 Every inflatable liferaft, inflatable
                           lifejacket and marine evacuation system should be serviced:
                        
                        
                        
                        
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                                 .1 at intervals not exceeding 12 months, provided
                                 where in any case this is impracticable, the Administration may extend
                                 this period to 17 months;
                              
                              
                              
                            
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                                 .2 at an approved servicing station which is competent
                                 to service them, maintains proper servicing facilities and uses only
                                 properly trained personnelfootnote; and
                                 
                              
                              
                              
                            
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                                 .3 in addition to or in conjunction with the servicing
                                 intervals of marine evacuation systems under paragraph 10.18.9.1,
                                 each marine evacuation system should be deployed from the ship on
                                 a rotational basis at intervals to be agreed by the Administration
                                 provided that each system is to be deployed at least once every six
                                 years.
                              
                              
                              
                            
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           10.18.10 All repairs and maintenance of inflated
                           rescue boats should be carried out in accordance with the manufacturer’s
                           instructions. Emergency repairs may be carried out on board the unit;
                           however, permanent repairs should be carried out by an approved servicing
                           station.