The majority of competing applications now require electronic application submission. The Funding Opportunity Announcement (FOA) to which you are applying will identify whether you must submit electronically or use paper submission. Note that paper submissions require use of the PHS 398 application form, while electronic submission requires the SF424 (R&R) application. Make sure to read instructions in the Funding Opportunity Announcement and the application guide to determine submission requirements.
Click here to vist the NIH Form page.