3.1 An Administration which receives a request
                           for approval of an alternative tanker design for the purpose of complying
                           with regulation 13F, should
                           first evaluate the proposed design and satisfy itself that the design
                           complies with these Guidelines and other applicable regulations of
                           MARPOL Annex I. That Administration should then submit the proposal
                           and the supporting documentation, together with its own evaluation
                           report, to the Organization for evaluation and approval of the design
                           concept by the MEPC as an alternative to the requirements of regulation
                           13F(3). Only design concepts which have been approved in principle
                           by the MEPC are allowed for the construction of tankers to which regulation
                           13F(5) applies.
                           
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           3.2 The submission to the Administration and the
                           Organization should at least include the following items:
                        
                        
                        
                        
                           - 
                              
                              
                              
                                 .1 detailed specification of the alternative design
                                 concept;
                              
                              
                              
                            
                           - 
                              
                              
                              
                                 .2 drawings showing the basic design of the tank
                                 system and, where necessary, of the entire ship;
                              
                              
                              
                            
                           - 
                              
                              
                              
                                 .3 study of the oil outflow performance as outlined
                                 in paragraphs 1.3 to 1.5;
                              
                              
                              
                            
                           - 
                              
                              
                              
                                 .4 risk analysis as outlined in paragraph 1.7;
                              
                              
                              
                            
                           - 
                              
                              
                              
                                 .5 details of the calculation procedure or computer
                                 program used for the probabilistic oil outflow analysis to satisfy
                                 the Administration that the calculation procedure used gives satisfactory
                                 results. For verification of the computer program see paragraph 6.2.
                                 
                              
                              
                              
                            
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         Any additional information may be required to be submitted
                           if deemed necessary.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           3.3 In addition to the approval procedure for
                           the design concept specified in paragraphs 3.1 and 3.2 above, the
                           final shipyard design should be approved by the Flag State Administration
                           for compliance with these Guidelines and all other applicable regulations
                           MARPOL Annex I. This should include survivability considerations as
                           referred to in paragraph 5.1.5.10.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           3.4 Any approved design concept will require reconsideration
                           if the Guidelines have been amended.