1.1.1 he Code is intended to provide standards
                           to prevent the occurrence of potentially hazardous noise levels on
                           board ships and to provide standards for an acceptable environment
                           for seafarers. These standards were developed to address passenger
                           and cargo ships. Since some sizes and certain service types of ships
                           have been exempted from these requirements, it should be recognized
                           that full application of the Code to ships that differ appreciably
                           from conventional ships will require special considerations. The Code
                           is intended to provide the basis for a design standard, with compliance
                           based on the satisfactory conclusion of sea trials that result in
                           issuance of a Noise Survey Report. Ongoing operational compliance
                           is predicated on the crew being trained in the principles of personal
                           protection and maintenance of mitigation measures. These would be
                           enforced under the dynamic processes and practices put in place under
                           SOLAS chapter IX.
                           
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           1.1.2 Requirements and recommendations are made
                           for:
                        
                        
                        
                        
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                                 .1 measurement of noise levels and exposure;
                               
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                                 .2 protecting the seafarer from the risk of noise-induced
                                 hearing loss under conditions where at present it is not feasible
                                 to limit the noise to a level which is not potentially harmful;
                               
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                                 .3 limits on acceptable maximum noise levels for
                                 all spaces to which seafarers normally have access; and
                               
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                                 .4 verification of acoustic insulation between
                                 accommodation spaces.
                               
 
                     
                     
                     
                        
                        
                         
                           1.1.3 Although this Code is legally treated as
                           a mandatory instrument under the SOLAS Convention, the following provisions
                           of this Code remain recommendatory, options for compliance, or informative
                           in nature: