dated checklists from self-assessments and/or third-party audits; certificates 
awarded for compliance with relevant ISO standards; timetables and evidence of adequate 
budget allocations for future certification. 
Discussion 
A one-time check on trustworthiness is not adequate because many things will change over 
time.  A longer term commitment should be demonstrated. 
AUDIT AND CERTIFICATION OF TRUSTWORTHY DIGITAL REPOSITORIES 
CCSDS 652.0-M-1 
Page 3-10 
September 2011 
3.4 
FINANCIAL SUSTAINABILITY 
3.