Official Forms for Viewing and Downloading. Failure to provide any of the information may result in delay or rejection of family voucher issuance.Please read entire document before completing form. Name change applications shall be upon Judicial Council forms. The Petition (NC-100) and (NC-110) shall be presented to the ex-parte calendar. In this article, we discuss how to write a conformational letter, look at sample templates for formal and informal confirmation letters and share some tips. Share the confirmation number and instructions with your doctor. Your doctor will fill out their part of the form. Other records that could be helpful in completing the Form 571-L are the California.