Introducing the Federal Data Terminations Tracker
Webinar
Wednesday, August 19, 2026
1:30 pm - 2:30 pm ET
Since the 2025 change in presidential administrations, disappearing federal datasets have drawn widespread attention, generating both concern and confusion about what has actually been terminated.
Join dataindex.us for a briefing on the release of the Federal Data Terminations Tracker the most policy-relevant, verified source of federal datasets terminated since January 2025. Having evolved from the crowdsourced Dearly Departed Datasets published in October 2025, the tracker combines community reporting with expert identification and review to provide a regularly updated record of terminations.
During the briefing, the team will explain the methodology behind the tracker, discuss why measuring data terminations is so challenging, and walk through the dozens of federal datasets identified as terminated.
A recording of the briefing will be shared publicly and emailed to all registrants.
Featuring:
Denice Ross, Director, Federation of American Scientists Data Policy Institute; former U.S. Chief Data Scientist
Chris Dick, co-founder of dataindex.us; former Chief of Population Evaluation, U.S. Census Bureau
Christopher Marcum, Senior Advisor, Federal Data Policy, Federation of American Scientists; former Senior Statistician, White House Office of Management and Budget
Vi Le, Senior Advisor, Federal Data Policy, Federation of American Scientists; former Behavioral Scientist, CDC’s Division of Violence Prevention
Tai Lung, Senior Advisor, Federal Data Policy, Federation of American Scientists; former EJScreen Lead, U.S. Environmental Protection Agency
Webinar Recording
Resources
Federal Data Terminations Tracker
How Do We Track Terminations of Federal Data? by Chris Dick and Denice Ross
Coverage from The Guardian’s Deleted Data project
Have a termination or removal to add? Contact us at removals@dataindex.us.
Slide-Deck-Introducing-the-Federal-Data-Terminations-Tracker.pdf