The U.S. Nuclear Regulatory Commission (NRC) is seeking vendors to provide development, maintenance, and user support for its Symbolic Nuclear Analysis Package (SNAP) plugins and visualization tools. Services will be performed in Rockville, Maryland, with responses due within 30 calendar days from the notice's publication. The contract focuses on maintaining NRC-owned plugins for safety analysis codes (TRACE, PARCS, MELCOR, MACCS, FAST) and advancing the GRAVE Plot visualization tool. Vendors must demonstrate expertise in Java-based SNAP plugin development, nuclear code knowledge, and Section 508-compliant tutorial creation. No budget or solicitation timeline is specified, as this is a market research notice only.