1. Gather required documents like ID and proof of residency. Fill out, sign, and save the form.Tip: Rename the file to include the student's last name. You must use Clark's Affidavit of Support form. What kinds of financial documents are acceptable? The Change of School Assignment process is reserved for students in Grades K-12. Browsing for a CCSD Residential Affidavit? On FormsPal, you can download this form and change or fill it out with our PDF editor online. How are students assigned to a school in the Clark County School District (CCSD)? BHCS will provide a Notary (free of charge) to complete this document with you.