Article 139
Issuer and issue credit assessment
                              1.  
                              
                           
                           
                              2.  
                              
                                 
                                    
                                 
                              
                           
                           Where no directly applicable credit assessment exists for a certain item, but a credit assessment exists for a specific issuing programme or facility to which the item constituting the exposure does not belong or a general credit assessment exists for the issuer, then that credit assessment shall be used in either of the following cases:
                                       (a) 
                                    
                                    
                                 In all other cases, the exposure shall be treated as unrated.
                              3.  
                              
                           Paragraphs 1 and 2 are not to prevent the application of Article 129.