# Nuclear Physicist – Nuclear Data Evaluation and Reaction Modeling Support

Canonical: https://abierto.us/opportunities/473609

- Solicitation number: 473609
- Notice type: Combined synopsis and solicitation (first published as sources sought)
- Status: Closed. Deadline was April 3, 2026 at 4:00 PM EDT
- Department: Department of Energy
- Contracting office: Brookhaven Natl Lab -Doe Contractor (899033)
- NAICS: 541690 Other Scientific and Technical Consulting Services
- Product or service code: R499 Other Professional Services
- Place of performance: Upton, New York
- County: Suffolk County (FIPS 36103). https://abierto.us/counties/suffolk-county-ny-36103
- First posted: February 6, 2026
- Last posted: March 20, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/b2574a09e491499fad5939cd1ef5d8d2/view

## Description

03/20/2026 Q&A ROUND 1 Hello - Please see attached, Round 1 Questions and Answers. Thank you, Cassandra Smith

03/19/2026 AMENDMENT 1 Hello - Amendment 1 issued to increase estimated hours for base and option periods from 120 to 960. Enclosure C has been updated accordingly. Thank you, Cassandra Smith

03/18/2026 Hello - Brookhaven Science Associates, LLC (BSA) operator of Brookhaven National Laboratory (BNL) under a Prime Contract with the U.S. Department of Energy (DOE) solicits your quote for Nuclear Physicist – Nuclear Data Evaluation and Reaction Modeling Support, specifically for the coordination, evaluation, and development support of the Reference Input Parameter Library (RIPL) and associated nuclear data activities. Requirements for this solicitation are outlined in the attached RFQ Document. Quote package shall include the below:

**Price Quote:**

1. The Offeror shall complete and return the attached Enclosure C. Quotation Pricing Sheet. Pricing shall remain firm for sixty (60) days to allow time for review, selection, and Award. Prices shall be quoted in U.S. Dollars.

2. Provide responses and supporting documentation for all Technical Qualifiers (Section 3.1 of RFQ Document), including CVs, publications, and relevant experience.

**Other Submittals:**

1. SAM Unique Entity Identification (UEI) Number within attached Enclosure C. Quotation Pricing Sheet, as well as affirm Representations and Certifications and size status are accurate and up to date in SAM. * Foreign Offerors are not required to be registered in SAM; however, must fill out the attached Enclosure B. AMS-Form-050 (Annual Representations and Certifications) if they are not.

2. The attached Enclosure B. AMS-Form-050 (Annual Representations and Certifications) is only required for Offerors that are not currently active and registered in SAM. A current copy (less than 12 months prior to the date of solicitation) of Enclosure B. AMS-Form-050 (Annual Representations and Certifications) must be on file with BSA’s Procurement and Property Management (PPM) Division before an Award can be placed.

3. The successful Offeror will be required to complete new vendor forms, if applicable.

**CRITICAL DATES Questions Due Date:** Wednesday, March 25, 2026, at 4:00 PM EST Quote Due Date: Friday, April 3, 2026, at 4:00 PM EST Anticipated Period of Performance: One (1) year base period with four (4) one-year option periods All questions regarding this RFQ must be submitted in writing via email to the undersigned. BSA appreciates your interest and looks forward to receiving your quotation. Thank you, Cassandra Smith

## Publications

- February 6, 2026: Sources sought, due February 10, 2026 at 4:00 PM EST. Notice c086fd4356a84174b78213c1240e26a5. https://sam.gov/workspace/contract/opp/c086fd4356a84174b78213c1240e26a5/view
- February 6, 2026: Sources sought, due February 10, 2026 at 4:00 PM EST. Notice e9ac4a69743a4292a249aed0372842df. https://sam.gov/workspace/contract/opp/e9ac4a69743a4292a249aed0372842df/view
- March 18, 2026: Combined synopsis and solicitation, due April 3, 2026 at 4:00 PM EDT. Notice a45a0f60d7af43e49dbada46a076d35f. https://sam.gov/workspace/contract/opp/a45a0f60d7af43e49dbada46a076d35f/view
- March 19, 2026: Combined synopsis and solicitation, due April 3, 2026 at 4:00 PM EDT. Notice 281b3c85d29e4d8e95cf42b81007e325. https://sam.gov/workspace/contract/opp/281b3c85d29e4d8e95cf42b81007e325/view
- March 20, 2026: Combined synopsis and solicitation, due April 3, 2026 at 4:00 PM EDT. Notice b2574a09e491499fad5939cd1ef5d8d2. https://sam.gov/workspace/contract/opp/b2574a09e491499fad5939cd1ef5d8d2/view

## Points of contact

- Cassandra (Cassie) Smith, csmith2@bnl.gov, 9078883142

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/473609.