Acknowledgement of receipt procedure requires sealed-envelope forms, signed and sealed forwarding, and contemporaneous receipt registers. Procedure requires the Adjudicating Authority or a designated officer to complete, sign and affix the office seal on Form II on receipt of a sealed envelope and forward it to the authorised officer; after opening the envelope the Authority must complete, sign and seal Form I and forward it as token of receipt of the retention order and material. The Authority must maintain immediate entries in specified registers, including acknowledgement slip, dak and receipt-detail registers, to document receipt and compliance.