In support of recent security directives, NIH is implementing a technical update to enhance security measures focused on protecting data provided by NIH Controlled-Access Data Repositories (CADRs). Specifically, as of April 4, 2025, NIH is prohibiting access to and ending any remaining ongoing projects involving NIH CADRs and associated data by researchers and institutions located in countries of concern. These countries include China (including Hong Kong and Macau), Russia, Iran, North Korea, Cuba, and Venezuela, consistent with EO 14117 and 28 CFR Part 202 “Preventing Access to U.S. Sensitive Personal Data and Government-Related Data by Countries of Concern or Covered Persons.” Please see Guide Notice NOT-OD-25-083 for more details.
• Any questions about this change can be submitted to gds@mail.nih.gov.
For other users, please note that NIH is implementing a technical update to the system. New controlled data access requests and downloading of controlled access data are currently unavailable. New controlled data access requests and download capabilities of controlled access data may be available in the future after the system has been updated.