This page memorializes the federal datasets and variables, as well as select data tools, that have been terminated or removed in 2025. This list does not include routine changes and terminations of datasets, but rather strives to capture losses to federal data that are extra-ordinary.

Search tool created by Boston University’s Center for Health Data Science to help users find lost or removed federal datasets across multiple rescue and archive sites.

CDC program that integrates environmental and health data from national, state, and local sources, and exposes them via interactive dashboards, maps, and a Data Explorer

Membership network that connects users, producers, and disseminators of government statistical data, advocating for collection, preservation, and access to federal statistics

While primarily a tool, CHR&R publicly documents continued availability and archiving of the federal data used in their indicators, emphasizing resilience amid federal data purges.

Research collaborative that documents changes to environment-related federal webpages and datasets, and maintains logs of modifications to public environmental information

DataIndex.us is a collaborative effort dedicated to monitoring shifts in federal datasets and identifying emerging risks to public data integrity. The project builds tools that track changes across five key vectors—accessibility, completeness, methodology, continuity, and transparency—to generate actionable risk indicators. These insights help policymakers, advocates, journalists, researchers, and data users understand when and how a dataset’s reliability may be degrading, and where intervention or additional monitoring is needed.

Broad coalition advocating for robust federal statistical systems and highlighting risks to “America’s essential data” in white papers and reports.

Uses federal datasets as the basis for case studies and stories showing how specific datasets support everyday life, policymaking, and the economy.

The American Statistical Association’s project to assess and monitor the health of the federal statistical agencies was launched in 2023 to take the pulse of the nation’s statistical system—the backbone of America’s public data infrastructure. This effort focuses on the 13 federal agencies whose primary mission is to produce official statistics, along with the chief statistician’s office in the U.S. Office of Management and Budget (OMB).

Collaborative project building a public hub and data explorer for at-risk environmental data, with ongoing archiving, mapping of EJ grants, and guides to environmental data tools.

The Environmental Data & Governance Initiative (EDGI) is a research collaborative and network of diverse professionals promoting evidence-based policy-making and public interest science that advances the Environmental Right-to-Know (ERTK).

We document, contextualize, and analyze current changes to environmental data and governance practices through multidisciplinary and cross-professional collaborative work; foster the stewardship and expansion of public knowledge through building participatory civic technologies and infrastructures; create new communities of practice to enable government and industry accountability; and promote models and tools that emphasize community participation at all scales, both within EDGI and in our public-facing tools.