The amount of family allowances, provided for in an agreement on assistance limited to children, must be equal to or greater than maintenance. Typically, a mandatory alimony contract provides that a parent pays a periodic amount (which may or may not be greater than the amount of alimony) and/or provides that either parent pays or contributes to other expenses for the child, such as school fees, health insurance, or extracurricular activities (called non-periodic payments). Where an agreement contains conditions or conditions, the parties must provide the registrant with evidence that the condition or condition is met. If no evidence is added, the Registrar may find that the agreement does not contain a provision relevant to the payment of child support (CSA Act Section 84(1)), that the agreement is not „duly concluded“ and refuse to accept the agreement. The commencement of a child support agreement may be subject to the conclusion of certain family law issues in the family or federal district court. It is necessary to obtain permission from a court before requesting a change in a calculation of child support over a period of more than eighteen months, unless the administrative review has been completed more than seven years before. . . .