The Self-Help Center is available to provide information regarding court procedures and instructions on completing, filing and serving the necessary documents. To submit a form via email, users must first download the form to their device and then click "submit" on the completed form. Accessibility.Calculate Your Support: How much could your support be? Complete all the information below and mail to: California. Department of Child Support Services, P.O. Box 981326, West. Child Support matters. Did you know, filling out a Child Support Registry Form only provides information about your child support order to the courts and State DCSS? Child support extends beyond infancy. Reach out to us now to discover how we can assist you with your minor children.