You are not required to have a PIN to complete and submit a FAFSA on the Web application. However, it is the fastest way to sign your application and have it processed. It is also the only way to access your data online.
If you would like to apply for a PIN, go to the Federal Student Aid PIN Web site at www.pin.ed.gov and click Apply For A PIN.
Follow the instructions on that Web site to apply for and receive your PIN.