If a Principal Investigator (PI) needs to submit a proposal through Grants.gov and include additional Units of Consideration, they should contact the NSF Research.gov Help Desk and, if necessary, the cognizant NSF Program Officer for guidance before submitting the proposal. Follow the instructions provided by NSF to ensure the proposal is submitted correctly. If you have questions about proposal requirements or submission procedures, contact the Research.gov Help Desk or the program office for the latest guidance.
Although certain proposal updates can be made after submission using NSF's proposal file update process, additional Units of Consideration cannot be added through a proposal file update after submission