Form TFI Service Contract For over 20 years, Temporary Fill-Ins South has served the dental community of Colorado. We’ll continue to be here to help you with your temporary staffing and permanent placement needs – 24 hours a day, seven days a week. Please enable JavaScript in your browser to complete this form.LayoutStep 1: Enter Personal InformationFirst Name *Last Name *Street Address *City or town, state, and ZIP code *Step 2:Complete this step if you (1) hold more than one job at a time, or (2) are married filing jointly and your spouse also works. The correct amount of withholding depends on income earned from all of these jobs.Signature *Clear SignatureDate *Employer’s name and address Employer identification number (EIN)Submit