Principal Investigators at Harvard can use the NSF FastLane Proposal Preparation application to prepare their proposal, and save his/her proposal as a work in progress. Once the Assistant Director in Awards Management / Sponsored Research Representative in SPH-OFS / or SPA Representative at HMS is granted access to a proposal, they can submit the proposal to NSF using the "Submit Proposal" module found within the Organizational Management of FastLane application.
Contact your Assistant Director / Sponsored Research Administrator in the appropriate pre-award office to obtain a password.