Confidential forwarding procedures require secure indexed transmission and acknowledgement, with extended retention of attachment and survey materials. The rules require the Director/authorised officer or authority to prepare and sign an index and each page of the order/reasons and material, enclose them in a sealed inner envelope marked confidential with a reference number and date, include the appropriate acknowledgement slip (Form-I or Form-II), place that envelope inside a sealed outer envelope with Form-III, and record dispatch in registers. The Adjudicating Authority must acknowledge receipt with the specified forms, maintain receipt registers, and retain copies for ten years or until related proceedings or appeals conclude.