The National Institutes of Health (NIH) is inviting applications for the CCRP Initiative: NIH Countermeasures Against Chemical Threats (CounterACT) Translational Exploratory/Developmental Research Projects (R21), aimed at developing medical countermeasures (MCMs) to address serious health risks from chemical threats. This funding opportunity focuses on exploratory research that generates preliminary data essential for the discovery and validation of novel treatment strategies, including the repurposing of FDA-approved products, to combat the effects of toxic chemical exposures resulting from terrorist activities or industrial accidents. The initiative underscores the importance of enhancing national security and public health preparedness against chemical incidents, with a funding ceiling of $275,000 available over a two-year period. Interested applicants must submit their proposals by May 30, 2025, and can direct inquiries to NIH Grants Information at grantsinfo@nih.gov.