CWMD 5-Year Research and Development (R&D) Open Broad Agency Announcement (OBAA) 70RDND19R00000003 and Topic Solicitation 14 70RWMD23R00000004

June 15, 2023 Update: The puropose for the update of this posting is to include Amendment 004 of RWMD23R00000004 containing the Question and Answers for the proposal phase and updates to the Topic Solicitation Section B, Section F, and Section I. In addition, Attachment A and Attachment G were updated. May 19, 2023 Update: The purpose for the update of this posting is to include Amendment 002 of 70RWMD23R00000004, containing updates to highlighted dates on Attachment A, page 1. May 12, 2023 Update: The purpose for the update of this posting is to include Amendment 002 of 70RWMD23R00000004, which contains Questions and Answers. April 26, 2023 Update: The purpose for the update of this posting is to include Amendment 001 of 70RWMD23R00000004, which includes updates to Section G.2 Invoices and Attachment A. This posting also includes Questions and Answers. OBAA Topic Solicitation No. 14 (RFP 70RWMD23R00000004) The Department of Homeland Security (DHS), Office of Procurement Operations (OPO), Countering Weapons of Mass Destruction Acquisition Division (CWMDAD) issues this Request for Proposal (RFP) to solicit capable vendors for the submission of technical and cost proposals in accordance with this Topic Solicitation No. 14, RFP No. 70RWMD23R00000004, titled Thallium-Bromide HPRDS Objective Resolution (THOR)", its attachments, and the overarching Research and Development (R&D) Open Broad Agency Announcement (OBAA) No. 70RDND19R00000003. This requirement supports the DHS Countering Weapons of Mass Destruction (CWMD), Research and Development Division (RDD), CWMD.05 Nuclear Sensing: Technologies that provide cross-cutting improvements to nuclear threat detection through dramatically improved performance and/or reduced costs when compared to commercial off-the-shelf systems. Please see the RFP and Attachments for further details on this requirement.