Please note that ENCs of Vietnam have been updated from the current VN Producer Code to Producer Codes V1 and V2 to match the listing in IHO Standard S-62. The first V1 ENC was released on 28 May 2020 (WK22/20), while the remainder of the V1 and V2 conversions were issued in subsequent weeks.

Because “V2” is newly added producer code it might not be known to your ECDIS and the Vietnam ENCs may show up in the ECDIS displayed as "non-ENC" or "unofficial" or produce warnings during installation due to an illegal/unknown producing agency (V2). We recommend that you contact your ECDIS manufacturer for further advise on how the producer list can be updated on the ECDIS.