3.1.1 All
                                 ships for which the Complementary Rules are either the Rules for Ships
                                 or the Rules for Naval Ships are to comply with requirements for material
                                 selection in cold weather operation, if applicable. These requirements
                                 may apply even if the vessel is not assigned an ice class notation
                                 according to Vol  1, Pt  5, Ch  2,  4 Ice environment.
                                 
                              
                              
                              
                            
                           
                           
                           
                              
                              
                              3.1.2 If the
                                 Complementary Rules are the Rules for Ships, the requirements of Pt  3, Ch  2 Materials of the Rules for Ships are
                                 to be complied with.