(a) No order establishing or modifying a child support obligation shall be entered unless financial affidavits on a form approved by the Wyoming supreme court which fully discloses the financial status of the parties have been filed, or the court has held a hearing and testimony has been received.(b) Financial affidavits of the parties shall be supported with documentation of both current and past earnings. Suitable documentation of current earnings includes but is not limited to pay stubs, employer statements, or receipts and expenses if self-employed. Documentation of current earnings shall be supplemented with copies of the most recent tax return to provide verification of earnings over a longer period.(c) The court may require, or the parents may agree, to exchange financial and other appropriate information once a year or less often, by regular mail, for the purpose of analyzing the propriety of modification of court ordered child support.(d) All financial affidavits and records required by law to be attached to the affidavit shall constitute a confidential file and are subject to inspection by persons other than the parties, their attorneys or the department of family services to the extent necessary to enforce the Child Support Enforcement Act and the Uniform Interstate Family Support Act only by court order.