Form N-648, the Medical Certification for Disability Exceptions, provides an opportunity for naturalization applicants who have a physical, developmental, or mental health disability to naturalize without meeting the English and/or civics requirements. On February 12, 2019, new USCIS policy guidance went into effect regarding Form N-648. Since August 12, 2019, USCIS only accepts the new edition of Form N-648, dated 5/23/19. Incorporating current guidance, these two practice advisories review the criteria for the N-648, address how medical providers can complete a successful N-648 for naturalization applicants, and cover procedural issues relating to completing and submitting Form N-648. The first practice advisory reviews the statutory and regulatory criteria for the disability exception. The second practice advisory describes how to complete Form N-648 in partnership with a medical professional, as well as the procedure for submitting the form.