The audits are performed using the standard ISO16363:2011, which is available from ISO and also from the CCSDS web site

The way in which the audit process is carried out is defined in ISO 16939:2011 (available from CCSDS site). This follows the ISO approach to audits as part of a process of continuous improvement.


  • PTAB spreadsheet - available here
  • Preparing for an ISO 16363 audit - see here
  • PTAB Repositories handbook - in preparation


Material Venue Authors
Society of American Archivists' Annual Meeting in Chicago, 22-28 August 2011 Mark Conrad
PV2011Giaretta.pdf PV2011 David Giaretta, Mark Conrad, John Garrett, Terry Longstreth, Simon Lambert, Barbara Sierman, Steve Hughes, Helen Tibbo
siermansept2011.pdf Betrouwbara digitale archieven, hoe kom je er achter? In: Informatie Professional. Vakblad voor informatiemedewerkers. 2011, 09. p. 12-13 Barbara Sierman
alamw2012_waltz.pptx American Library Association Midwinter Meeting. Saturday, January 21st, at 4:00 in the afternoon Dallas Marie Waltz
NISO webinar NISO Discoverable, Available, Accessible: Preserving Digital Content Webinar Marie Waltz
"Establishing Trust in Digital Repositories," Chapter 18 in Usha Mujoo Munshi and Bidyut Baran Chaudhuri, Multimedia Information Extraction and Digital Heritage Preservation, Statistical Science and Interdisciplinary Research, volume 20, World Scientific Publishing Co. 2011. Bruce Ambacher
Audit and Certification of Digital Repositories: ISO and the European Framework APA conference
David Giaretta
ISO Audit and Certification of Trustworthy Digital Repositories, the Primary TDR Authorisation Body (PTAB) PASIG workshop, Austin, Texas David Giaretta
E-Forum2012.pptx E-Records Forum, 25 April 2012, Austin, TX Mark Conrad


[1] Reference Model for an Open Archival Information System (OAIS). Recommendation for Space Data System Standards, CCSDS 650.0-M-2. Blue Book. Issue 1. Washington, D.C.: CCSDS, June 2012, available here [also to be published as ISO 14721:2003.] .

[B1] D. Waters and J. Garrett. Preserving Digital Information. Report of the Task Force on Archiving of Digital Information. Washington, DC: CLIR, May 1996.

[B2] Trusted Digital Repositories: Attributes and Responsibilities. (TDR) An RLG-OCLC Report. Mountain View, CA: RLG, May 2002.

[B3] Trustworthy Repositories Audit & Certification: Criteria and Checklist. (TRAC) Version 1.0. Chicago: CRL, February 2007.