Symbolic Nuclear Analysis Package (SNAP) Development, Maintenance, and Support Follow-On

Quick Summary

The U.S. Nuclear Regulatory Commission (NRC) is issuing a Sources Sought Synopsis for the "Symbolic Nuclear Analysis Package (SNAP) Development, Maintenance, and Support Follow-On" project. This market research aims to identify qualified vendors capable of providing comprehensive services for the SNAP framework and its associated plugins. Services will be performed in Rockville, Maryland, under NAICS code 541511 (Custom Computer Programming Services). This is not a solicitation, and no proposals are being accepted at this time.

Background and Objective

The NRC's Office of Nuclear Regulatory Research (RES) requires continued development, maintenance, sustainment, and user support for its SNAP plugins (TRACE, PARCS, MELCOR, MACCS, FAST) and the GRAVE Plot scientific data visualization tool. The objective is to ensure seamless operation, adapt to physics code updates, provide sustained support for mature plugins, and continue GRAVE Plot development.

Scope of Work

The anticipated scope includes:

• Core Plugin Maintenance: Routine and patch-driven updates to TRACE, PARCS, MELCOR, MACCS, and FAST plugins, ensuring backward compatibility and regression testing.
• Sustainment and User Support: Long-term maintenance of mature plugins (e.g., Engineering Template, SLURM Job Stream, Git Version Control, Uncertainty Quantification) and production of Section 508-compliant technical tutorial videos.
• Visualization Tool Development: Active continuous development of GRAVE Plot, including User Interface (UI) refinements, new plot format support, and Python API integration.

Required Capabilities

Vendors must demonstrate:

• Technical experience developing complex Java-based plugins for the SNAP core architecture.
• Knowledge of NRC’s safety analysis codes (TRACE, PARCS, MELCOR, MACCS, FAST) and ability to manage unpredictable patch-driven release schedules.
• Experience developing scientific data visualization tools, including robust UI interfaces and Python API implementation.
• Demonstrated experience creating technical, Section 508-compliant tutorial videos.
• Proficiency in Section 508 of the Rehabilitation Act requirements for compliant deliverables.
• Experience with pricing strategies for unpredictable work (FFP vs. Labor-Hour).

Response Instructions

Interested parties should submit a capabilities package demonstrating their ability to perform the work as a prime contractor. Responses must include:

• Organization details (name, address, email, website, phone).
• Small business size and type (if applicable) under NAICS 541511.
• Detailed responses addressing each required capability, including prior work examples (prime/subcontractor role, contract details, customer, value, period of performance).
• Information on anticipated subcontracting or teaming arrangements.
• Description of Section 508 compliance processes and examples of prior compliant video content.
• Indication of services available through Federal Government contracts (GSA, GWACs) with contract numbers.
• A standard, non-proprietary commercial price list for the required capabilities.
• Disclosure of current/past services for NRC-regulated licensees.
• Disclosure and mitigation of any previous Organizational Conflict of Interest (COI) issues with NRC.

Contract & Timeline

• Type: Sources Sought / Market Research
• NAICS: 541511 (Custom Computer Programming Services)
• Set-Aside: None specified (open to all businesses, including small businesses)
• Response Due: July 8, 2026, 8:00 PM ET
• Published: June 5, 2026
• Point of Contact: Aracelis Perez-Ortiz, Aracelis.Perez-Ortiz@nrc.gov, 301-415-0085

Additional Notes

This notice is for market research purposes only and does not constitute a request for proposal. The Government will not assume financial responsibility for any costs incurred in responding. A pre-solicitation synopsis and solicitation may be published later.