□ Prepare the Certificate of Service. Be sure to sign your responses.Fill in the "certificate of service" on the last page before mailing them back to the other side. Each pafi is allowed to serve up to 40 Interrogatories -' including related sub-parts -- on another party. You may not serve more than 40 Interrogatories. This Index is updated periodically. Internet Forms are added, deleted, and revised frequently. You can search online for private process servers. The Legal Forms Index contains a listing of forms found online as well as sample forms found at the Clark County Law Library. Below is a list of the civil district court forms that are available, free of charge, at the Civil Law Self-Help Center.