The purpose of the Code is to limit noise levels and to
                           reduce seafarers' exposure to noise, in order to:
                        
                        
                        
                        
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                                 .1 provide for safe working conditions by giving
                                 consideration to the need for speech communication and for hearing
                                 audible alarms, and to an environment where clear-headed decisions
                                 can be made in control stations, navigation and radio spaces and manned
                                 machinery spaces;
                               
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                                 .2 protect the seafarer from excessive noise levels
                                 which may give rise to a noise-induced hearing loss; and
                               
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                                 .3 provide the seafarer with an acceptable degree
                                 of comfort in rest, recreation and other spaces and also provide conditions
                                 for recuperation from the effects of exposure to high noise levels.