Site Exposure Matrices (SEM) Scientific and Technical Services 1605C3-25-R-00002

The U.S. Department of Labor (DOL), Office of the Senior Procurement Executive (OSPE) anticipates competitively awarding a Labor-Hour contract, on behalf of the Office of the Office of Workers Compensation Programs (OWCP), Division of Energy Employees Occupational Illness Compensation (DEEOIC) intends to award, under this solicitation, a single Labor-Hour contract for Site Exposure Matrices (SEM) Scientific and Technical Services. Please see the attached Request for Proposal (RFP) document for full details. All questions must be submitted in writing to the Contracting Officer, Emily Pyatigorsky at Pyatigorsky.Emily@dol.gov (with carbon copy to Bost.Geopardi.G@DOL.gov) no later than Friday, 07/11/2025 at 4:00PM ET, by utilizing Attachment 1 Vendor Questions Template. Additonal due dates are noted within the RFP documents.

The purpose of this Amendment #1 is to extend the closing date for this Request for Proposal (RFP). This extension is allow the government additional time to response to vendor questions, subsequently extending the time allowed for vendor's to provide proposals in response to this RFP. The solicitation due date/ closing date is hereby changed from 07/23/2025, 2:00pm (ET) to 08/08/2025, 2:00pm (ET). More details regarding questions and answers, along with updated RFP documents will follow this amendment. See attached titled, "A19_RFP_Amendment 1". All other terms and conditions remain unchanged. _____________________________________________________________________ The U.S. Department of Labor (DOL), Office of the Senior Procurement Executive (OSPE) anticipates competitively awarding a Labor-Hour contract, on behalf of the Office of the Office of Workers Compensation Programs (OWCP), Division of Energy Employees Occupational Illness Compensation (DEEOIC) intends to award, under this solicitation, a single Labor-Hour contract for Site Exposure Matrices (SEM) Scientific and Technical Services. Please see the attached Request for Proposal (RFP) document for full details. All questions must be submitted in writing to the Contracting Officer, Emily Pyatigorsky at Pyatigorsky.Emily@dol.gov (with carbon copy to Bost.Geopardi.G@DOL.gov) no later than Friday, 07/11/2025 at 4:00PM ET, by utilizing Attachment 1 Vendor Questions Template. Additonal due dates are noted within the RFP documents.

The purpose of this Amendment #2 is to change the following elements of the Request for Proposal (RFP): 1) to provide the amended Performance Work Statement (PWS) with changes highlighted in yellow, including the updated projected contract Period of Performance (POP) (see attachment titled "A19_RFP_Amendment 2" for full details), 2) post the vendor Questions to the solicitation, with DOL responses (see attachment titled "Vendor Questions and Answers"), 3) provide a second opportunity for RFP questions. The due date for 2nd round of RFP questions is 08/08/2025, at 2:00pm (ET), 4) extend the closing date for this RFP. The solicitation due date/closing date is hereby changed from 08/08/2025, 2:00pm (ET) to 08/15/2025, 2:00pm (ET). All other terms and conditions remain unchanged. _________________________________________________________________________________ The purpose of this Amendment #1 is to extend the closing date for this Request for Proposal (RFP). This extension is allow the government additional time to response to vendor questions, subsequently extending the time allowed for vendor's to provide proposals in response to this RFP. The solicitation due date/ closing date is hereby changed from 07/23/2025, 2:00pm (ET) to 08/08/2025, 2:00pm (ET). More details regarding questions and answers, along with updated RFP documents will follow this amendment. See attached titled, "A19_RFP_Amendment 1". All other terms and conditions remain unchanged. _____________________________________________________________________ The U.S. Department of Labor (DOL), Office of the Senior Procurement Executive (OSPE) anticipates competitively awarding a Labor-Hour contract, on behalf of the Office of the Office of Workers Compensation Programs (OWCP), Division of Energy Employees Occupational Illness Compensation (DEEOIC) intends to award, under this solicitation, a single Labor-Hour contract for Site Exposure Matrices (SEM) Scientific and Technical Services. Please see the attached Request for Proposal (RFP) document for full details. All questions must be submitted in writing to the Contracting Officer, Emily Pyatigorsky at Pyatigorsky.Emily@dol.gov (with carbon copy to Bost.Geopardi.G@DOL.gov) no later than Friday, 07/11/2025 at 4:00PM ET, by utilizing Attachment 1 Vendor Questions Template. Additonal due dates are noted within the RFP documents.