A current Substitute form W-9 must be on file with Pima Community College in order for you to receive payment for your invoice. To elect an Arizona withholding percentage, an employee must complete Arizona Form A-4, and submit it to their employer."Contractor" is a vendor under contract to perform a specific service or acquisition. 7. You have a current "Child Support Order" that was entered in Pima County,. ✓ You wish to modify the Order,. Fill in your name, address and telephone number in the top area where indicated on the Order. 2. This personnel policy statement applies specifically to full-time regular classified non-exempt employees. For additional personnel policies that.