The goal of this call for a Request-for-Information (RFI) is to obtain information from the environmental science community to further refine the design and specifications of NEON. This information is needed to prepare the Project Execution Plan, a document required for the Preliminary Design Review, which is the second of three reviews that must occur prior to requesting funds from NSF to construct NEON. The responses to this call for RFIs can be viewed in the Abstracts for Non-site Based RFIs document