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Differences in Due Dates

NSF programs have different submission and deadline requirements that correlate with committee needs and meeting times. NSF program solicitations may include one or more of the following types of due dates:

  • Target dates after which proposals will still be accepted but may miss a relevant panel or committee meeting
  • Deadline dates after which proposals will not be accepted for review by NSF. These deadlines will only be waived in specific circumstances that are authorized in accordance with GPG Chapter II A.   
  • Submission windows during which proposals are accepted for review by the NSF. The end date of the submission window acts as the official deadline date for that proposal submission.

These target dates, deadlines, and submission windows are published in specific program descriptions, program announcements and solicitations that can be found using the Program and Due Dates page or the NSF Website. Unless otherwise specified in a program solicitation, proposals with a deadline date must be received by 5 p.m. at submitter's local time.