This publication constitutes a Broad Agency Announcement (BAA) as described in Federal Acquisition Regulation (FAR) Part 35.016, FAR 6.102(d)(2), and DFARS 235.016. This BAA is a competitive solicitation of proposals focused on research and development of technologies to meet the mission of the Defense Threat Reduction Agency (DTRA). Formal Requests for Proposal regarding this announcement will not be issued. With this BAA, DTRA is soliciting innovative proposals for technologies in the technology readiness level (TRL) 3-7 range that will lead to new or improved technical solutions for countering and deterring WMD and other emerging threats.