Request Data Access

Summary data on the contents of NDCT, as well as all the repositories that make up the NIMH Data Archive (NDA), are open to the public without the need for an account. All item-level data stored in the NDA is freely accessible to qualified researchers, however due to the sensitive nature of the data it is not available for unrestricted public access. If you are a researcher who would like to access shared data in the NDA, you must complete a Data Use Certification (DUC) form and submit it for review by a Data Access Committee. One form can be used to request access to any or all NDA repositories, including NDCT.

Data Use Certification

Last modified on Jul 25, 2016


There are three criteria you must meet to be eligible to request access:


  1. You must have a research-related need to access the data
  2. You must be associated with an NIH-recognized research institution, defined as an institution registered in the NIH electronic research administration system (eRA Commons,) and have the approval of an authorized signatory official of that institution.
  3. Your institution must have an active Federalwide Assurance (FWA.)


If you do not know whether or not you meet these, for example if you are unsure of who at your instituion is an authorized signing official, do not know whether your institution has an FWA, or have any other questions, please view our tutorials or contact us.


Once completed,email the DUC form to us for review. Requests are typically processed within 10 business days. Once approved, access is valid for one full year, at which point a renewal request should be submitted to maintain access.


When it comes time to renew existing access, you can simply submit a new DUC through the same process. The only difference between a renewal and a new request is that renewal requests must include a progress report including any publications or presentations that may have resulted from the previous access period, and can then create an NDA Study to link that publication to the underlying data in NDA.