Update to Form N-648, Medical Certification for Disability Exceptions
New edition dated 03/21/17. Previous editions accepted.
Last Reviewed/Updated:
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
New edition dated 03/21/17. Previous editions accepted.