Amendment 0002: The purpose of this amendment is to answer the following question. Question: Are we required to fill in all the labor categories for each Group we are bidding on, or just those labor categories we believe we will charge to for that work? In some cases the Offeror doesn't expect to use all the labor categories. However, it seems like you would want costs for every labor categories to have a fair comparison between different bidders. A: Offerors must provide pricing for all labor categories within each Group on which they are bidding — including those they do not anticipate using. This ensures a fair and consistent comparison across all offerors during the evaluation process. Amendment 0001: This amendment makes the following changes to the RFP: (a) Incorporates responses to industry questions (see Amendment 001 Questions and Answers.pdf). (b) Incorporates DD Form 254 (19AQMM-26-R-0034) into the solicitation. (c) Replaces Attachment 1 - Instructions in its entirety with Amendment 001 Attachment 1 - Instructions. (d) Replaces Attachment B - Pricing Worksheet with Amendment 001 Attachment B - Pricing Worksheet. (e) Replaces Attach A - SOW - Eng Services Final with Amendment 001 Attach A - SOW - Eng Services Final. (f) Replaces Attachment C - CDRLs_EngSvcs with Amendment 001 Attachment C - CDRLs_EngSvcs. (g)The SF-1449 CLINS and clauses have been updated. CLOSING DATE/TIME: 06/22/2026 - 17:00 ET US/Eastern RFP: This is a combined synopsis/solicitation for commercial services prepared in accordance with FAR Part 12 in conjunction with the procedures for "Contracting by Negotiation" found in FAR Part 15. This announcement constitutes the only solicitation; proposals are being requested, and a written solicitation will not be issued. This solicitation is a request for proposals (RFP). The solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular (FAC) 2026-01 Effective Date 03/13/2026. The associated North American Industrial Classification System (NAICS) code for this procurement is 541330 - Engineering Services, with a small business size standard of $25.5 annual average receipts total or gross income. The Product Service Code: C219 - Architect and Engineering- General: Other. The Department of State, Bureau of Diplomatic Security, Countermeasures Directorate, Office of Physical Security Programs is seeking an industry partner or partners to provide engineering and support services for both the Physical Security Division (PSD) and Defensive Equipment and Armored Vehicles (DEAV) in accordance with the Statement of Work (Attachment 1) titled: Engineering Services for Physical Security Programs (PSP) and Defensive Equipment and Armored Vehicles (DEAV). The anticipated period of performance is five years from date of award. Type of Contract: This contract is an Indefinite-Delivery, Indefinite-Quantity (ID/IQ) contract. Delivery Orders issued under this contract will b…