Practical do’s & don’ts for trading/ops (where write‑off issues often appear) Do's Ensure   quantities   (B/L/manifest vs CHED) are realistic and aligned with tolerance policy. Customs systems are known to have not implemented these tolerances in their system. To raise with Vemobin/NCO-NCW industry associations.  In contracts, explicitly define: who files the CHED/GGB, who pays sampling/inspection/storage, what happens under partial release or rejection. If splitting is expected: design the   administrative chain   upfront (single consignee vs multiple; warehousing; resale before/after customs clearance). Don’ts Don’t try to “fix” the CHED/GGB only upon arrival; for SPS goods   pre‑notification timing   is often strict. Don’t assume you can freely reallocate volumes once part of a consignment has been released/“written off”.