ce is issued, existing 
CCSDS-related member Practices and implementations are not negated or deemed to be non-
CCSDS compatible. It is the responsibility of each member to determine when such Practices 
or implementations are to be modified.  Each member is, however, strongly encouraged to 
direct planning for its new Practices and implementations towards the later version of the 
Recommended Practice.  
AUDIT AND CERTIFICATION OF TRUSTWORTHY DIGITAL REPOSITORIES 
CCSDS 652.0-M-1 
Page iii 
September 2011 