Solicitation: Department of Homeland Security (DHS) is seeking Research and Development (R&D) proposals for countering Weapons of Mass Destruction (CWMD). The objective is to identify, explore, and demonstrate new technologies and capabilities to prevent, protect against, respond to, and mitigate nuclear, chemical, radiological, and biological threats and incidents. This 5-year Broad Agency Announcement (BAA) will provide an acquisition tool for innovative solutions. Proposals will be accepted within specified timeframes for various Areas of Interest (AOI) outlined in the notice. Interested parties can find more information on SAM.gov.