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National Science Foundation (NSF) System-Related Deadlines

Published on September 6, 2023 via Research News

The following critical FastLane,, and system-related deadlines for NSF proposals are approaching:

FastLane September 29th Deadlines

  • Friday, September 29, 2023 (5 p.m. submitter’s local time) is the last day to submit proposal file updates and budget revisions in FastLane, withdraw FastLane submitted proposals, and withdraw supplemental funding requests submitted in FastLane. Please see the FastLane System Decommissioning page for additional information.
  • Friday, September 29, 2023 (11 p.m. Eastern Time) is the last day to access FastLane submitted and in-progress letters of intent, proposals, and supplemental funding requests in FastLane.
  • Friday, September 29, 2023 (11 p.m. Eastern Time) is the last day to access the FastLane homepage using the URL. Starting September 30, 2023, the following changes will be implemented:
    • The FastLane homepage URL ( will redirect to the homepage.
    • Access to FastLane Proposal Review and Panelist Functions will be from the homepage using the links indicated by an “F” icon displayed to the left of each FastLane functionality link. 
    • Links to decommissioned FastLane functionality (i.e., FastLane proposal file updates, budget revisions, and proposal downloads) will be removed from the homepage.
    • FastLane homepage top navigation bar tabs will be removed. and October 20th Deadlines

  • Friday, October 20, 2023 (5 p.m. submitter’s local time) is the last day to upload the NSF fillable PDF format for the biographical sketch and current and pending (other) support.
    • Proposers currently may prepare the biographical sketch and current and pending (other) support using either SciENcv or the NSF fillable PDFs.
    • The mandate to use SciENcv only for preparation of the biographical sketch and current and pending (other) support will go into effect for new proposals submitted or due on or after October 23, 2023.
    • Refer to Proposal & Award Policies & Procedures Guide Chapters II.D.2.h.(i). and II.D.2.h.(ii). as well as the NSF biographical sketch and current and pending (other) support pages for more information.
    • Please be aware that biographical sketch and current and pending (other) support format is validated for proposals at proposal submission to NSF rather than at document upload as in proposals which include the NSF fillable PDF format will not pass the submission validations after Friday, October 20, 2023 (5 p.m. submitter’s local time). For more information about NSF proposal submissions via, please visit the Proposal Processing in informational page.

Note: All WashU grant applications to NSF should be prepared and submitted via They should not be submitted System To System (S2S) or via because all the required components may not transfer from S2S and to NSF. You will likely have to add components in prior to the deadline date/time. Any corrections, or additions must be done via

SciENcv Training Resources

Please contact OSRS if you have any questions.