
Unsolicited Proposal Submission
Guidebook
Guidebook for Proposers for the Preparation and Submission of Unsolicited Proposals
NASA encourages the submission of unique and innovative proposals that will further the Agency’s mission. While the vast majority of proposals are solicited via a publicly-available NASA Notice of Funding Opportunity (NOFO), a small number of unsolicited proposals that are not appropriate for submission in response to those NOFOs, and yet are still relevant to NASA, are reviewed and funded each year. NASA’s NOFOs are published on the NASA Solicitation and Proposal Integrated Review and Evaluation System (NSPIRES).

NSPIRES
NASA Solicitation and Proposal Integrated Review and Evaluation System
NSPIRES, the official NASA system used to receive, evaluate, and select proposals submitted in response to different types of NASA announcements.








