 in 
the authorization of this document can be obtained from the CCSDS Secretariat at the 
address below. 
 
 
This document is published and maintained by: 
 
CCSDS Secretariat 
Space Communications and Navigation Office, 7L70 
Space Operations Mission Directorate 
NASA Headquarters 
Washington, DC 20546-0001, USA 
AUDIT AND CERTIFICATION OF TRUSTWORTHY DIGITAL REPOSITORIES 
CCSDS 652.0-M-1 
Page ii 
September 2011 
STATEMENT OF INTENT  
The Consultative Committee for Space Data Systems (CCSDS) is an organ