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Resubmission
An unfunded application that has been modified following initial review and resubmitted for new consideration. Before a resubmission application can be submitted, the PD/PI must have received the summary statement from the previous review. A resubmission application may be submitted for new, renewal, or revision applications. NIH allows only one resubmission application. Policies regarding resubmission applications can be found in the application guide. A resubmission has a suffix in its application identification number, e.g., A1.

See Resubmission Policy.

Quoted from the NIH OER Glossary & Acronym List.