If you do not sign the admission document, USCIS will not be able to grant your NACARA application. In most cases, USCIS will refer your application to an immigration judge to make a decision. You may wish to consult with an attorney or representative before your interview if you have any concerns about signing a document in which you admit that you are inadmissible or deportable.
National Customer Service Center
TDD for the Hearing Impaired