1.5.1 Each passenger submersible craft should
                           be subject to the surveys specified below:
                        
                        
                        
                        
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                                 1.5.1.1 An initial survey before the Certificate
                                 required in section 1.6.2 is
                                 issued for the first time. This survey should include a complete and
                                 thorough examination of the passenger submersible craft, equipment,
                                 fittings, arrangements and materials and should be such as to ensure
                                 full compliance with the applicable provisions of the Guidelines.
                                 
                               
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                                 1.5.1.2 An annual survey to ensure that the passenger
                                 submersible craft, fittings, arrangements and equipment remain in
                                 compliance with the applicable provisions of the Guidelines and are
                                 in good working order. Such survey should be endorsed on the Certificate
                                 issued under the provisions of section
                                    1.6.2. An annual survey should include a test dive to the rated
                                 depth.
                                 
                               
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                                 1.5.1.3 A dry-docking survey at intervals specified
                                 by the Administration, but not exceeding three years, which should
                                 be a complete and thorough examination of the passenger submersible
                                 craft, equipment, fittings, arrangements and materials and should
                                 ensure full compliance with the applicable provisions of the Guidelines.
                                 Additional dry-docking(s) may be required at the discretion of the
                                 Administration subject to accessibility of underwater components during
                                 annual surveys.
                               
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                                 1.5.1.4 Annual surveys are to be performed within
                                 three months either way of the anniversary date of the previous dry-docking
                                 survey or the original certificate date if dry-docking surveys have
                                 not yet been performed.
                               
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                                 1.5.1.5 Dry-docking surveys are to be completed
                                 within three months prior to the due date to avoid changing the due
                                 date. When dry-docking surveys are commenced more than three months
                                 prior to the due date, the survey is to be completed within three
                                 months of initiation of the survey. At the operator’s option,
                                 when such additional dry-docking surveys are carried out, the due
                                 date of the next dry-docking survey may be modified accordingly.
                               
 
                     
                     
                     
                        
                        
                         
                           1.5.2 An inspection, either general or partial,
                           according to the circumstances, should be made every time a defect
                           is discovered or an accident occurs which affects the safety and certification
                           of the passenger submersible craft. The inspection should ensure that
                           the repairs or alterations carried out have been done effectively
                           and are in all respects in full compliance with the applicable provisions
                           of the Guidelines.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           1.5.3 Surveys and inspections should be carried
                           out by officers of the Administration. The Administration may, however,
                           entrust the surveys either to surveyors nominated for the purpose
                           or to organizations recognized by it. In every case the Administration
                           concerned should fully guarantee the completeness and efficiency of
                           the surveys.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           1.5.4 After any survey or inspection under this
                           section has been completed no change that affects its safety and certification
                           should be made to the passenger submersible craft without the agreement
                           of the Administration, or any person or organization duly authorized
                           by it, except for the purpose of repair or maintenance. The management
                           of passenger submersible craft operations should comply with the International
                           Safety Management (ISM) Code
                           footnote.