Form W-9 — University of Central Florida A W-9 is used to certify Taxpayer Name and Tax ID Number information by the University of Central Florida. Link: Vendor Registration Forms — FTP Directory Listing Forms & Documents Please note — For the Vendor Registration Program, your Tax Status Questionnaire and Form W9 are to Orlando, FL 32801. Form W-9 — University of Central Florida A W-9 is used to certify Taxpayer Name and Tax ID Number information by the University of Central Florida.