Appendix G - Format Changes
    
    
      MARC 21 Bibliographic    
    
      April 2016    
    
    This section is provided for the lists of format changes
    that accompany each update to the MARC 21 Format for
    Bibliographic Data.
    
    MARC 21 FORMAT FOR BIBLIOGRAPHIC DATA
    FORMAT CHANGE LIST
    
      Update No. 22, April 2016
    This page documents the changes contained in the twenty-second
      update to the 1999 edition of the MARC 21 Format for
      Bibliographic Data. Update No. 22 (April 2016)
       includes changes resulting from proposals that were
  considered by the MARC 21 community during January 2016. 
    
	UPDATE 22 CHANGES
    
      ■ New content designators:    
	
      Codes 
    
      Code n - Not Applicable
       in Sound Recording 007/03 (Speed) 
  
  
    
      Code n - Not Applicable
       in Sound Recording 007/10 (Kind of material) 
  
  
  
      Code r - Remote
       in Sound Recording 007/01 (Specific material designation) 
  
  
   
      Code s - Standalone device
       in Electronic Resource 007/01 (Specific material
                                 designation) 
  
  
  
  
      Subfields    
	  
	 
      $r Total number of individuals performing alongside ensembles  (NR)      in 382
      
      
           (Medium of Performance)     
	  
     
      $t Total number of ensembles   (NR)      
	  in 382 (Medium of Performance)     
    
      $0 Authority record control number or standard number (R) in 753 (System
 
      
           Details Access to Computer Files)    
      
   
      $2 Source of term (NR) in 753 (System Details Access to Computer Files)    
	
	  
  
      ■ Changes in content designator
      names and definitions:    
      
      
  
      Character Positions
    
    
     
      Speed 
      redescribed in Sound Recording 007/03 (Speed) 
	  
  
      Kind of material 
      redescribed in Sound Recording 007/10 (Kind of material) 
  
	  
	
      Codes
    
    
     
      Code b - Chip cartridge 
      redescribed in Electronic Resource 007/01 (Specific material
                                designation) 
	  
  
      Code s - Sound Recording 
      redescribed in Sound Recording 007/00 (Category of
                                 material) 
	  
     
      Subfields
    
	
  
      $e Number of ensembles renamed Number of ensembles of the same type  in 382
      
              
      
  (Medium of Performance)