The Government’s requirements and desired outcomes are defined for each project solicitation. Note that the solicitation for S2MARTS is referred to as Request for Solutions (RFS) and SpEC is referred to as Request for Prototype Proposal (RPP). Included in the solicitation are specific instructions regarding the contents and format for your submission. It is critical that you review and comply with all the stated requirements and submission instructions to ensure your submission is compliant. If there are any areas of uncertainty or further clarification is needed, please submit your question(s) to NSTXL to assist.