The National Institutes of Health (NIH) is offering administrative supplements to existing NIH grants and cooperative agreements to provide additional funding for unforeseen costs related to currently funded projects. Eligible applicants, including Indian/Native American Tribal Governments, federal agencies, and foreign institutions, must ensure that their parent award is active and that the proposed research aligns with the peer-reviewed scope of the original grant. This funding opportunity is crucial for researchers facing unexpected expenses that may hinder their ongoing projects. Interested parties should discuss potential requests with the awarding Institute and submit applications on a rolling basis, with the estimated award date set for January 2, 2026. For further inquiries, applicants can contact the Division of Grants Policy at GrantsPolicy@od.nih.gov.