The requirements of this Chapter are applicable
                           to the design and construction philosophy of Programmable Electronic
                           Systems used for machinery control, alert and safety systems as well
                           as ship safety systems that are essential to the safety of a naval
                           vessel.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                        This Chapter details the requirements for programmable electronic systems
                           within the boundary for provision of both Mobility and Ship Type systems.
                        
                        
                        
                      
                     
                     
                     
                        
                        
                        Application of this Chapter will facilitate the verification of the
                           performance requirements of ANEP-77 NATO Naval Ship Code, Chapter IV, Regulation
                           18.