A Tennessee Cost Bond — Civil is a type of surety bond that is required in civil court cases in the state of Tennessee. It is a financial guarantee between the plaintiff and the defendant in a civil case that the defendant will pay any costs the court may impose if the defendant loses the case. There are three types of Tennessee Cost Bond — Civil: Standard, Appeal, and Substitution. The Standard Cost Bond is required in most civil court cases and guarantees that the defendant will reimburse the plaintiff for all costs associated with the case. The Appeal Cost Bond is required when a case is appealed and guarantees that the defendant will reimburse the plaintiff for all costs associated with the appeal. The Substitution Cost Bond is required when a defendant needs to be substituted in a case and guarantees that the defendant will reimburse the plaintiff for all costs associated with the substitution.