Authentication of ARE-3 requires a dated superintendent signature and attested photocopy for self-bonded units. Endorsements on supply invoices and ARE-3 for deemed export claims must bear the dated signature of the Superintendent of Central Excise; for units under the self-bonding/warehousing procedure the Superintendent must provide an attested true photocopy of the original ARE-3. A public notice to trade and Standing Order guidance to officers should be issued, and implementation difficulties reported to the Board.