2.1 These Guidelines apply to the assessment of
                           alternative designs of oil tankers to be constructed of steel or other
                           equivalent material, as required by SOLAS regulation II-2/11. Designs for tankers intended to be constructed
                           of other materials or incorporating novel features (e.g. non-metallic
                           materials) or designs which use impact-absorbing devices should be
                           specially considered.
                           
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           2.2 The approval procedure of these Guidelines
                           applies to oil tankers of sizes up to 350,000 dwt. For larger sizes
                           the approval procedure should be specially considered.