| 1 | First release |
| User message approved and issued in the first release of the year of the UNTDID (United Nations Trade Data Interchange Directory); valid for directories published prior to March 1990. Service message approved and issued as the first release of the message within a version of ISO 9735; valid for version 4 of IS0 9735 and later. |
| 2 | Second release |
| User message approved and issued in the second release of the year of the UNTDID (United Nations Trade Data Interchange Directory); valid for directories published prior to March 1990. Service message approved and issued as the second release of the message within a version of ISO 9735; valid for version 4 of IS0 9735 and later. |
| 902 | Trial release 1990 |
| Message approved and issued in the 1990 status 1 (trial) release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 911 | Trial release 1991 |
| Message approved and issued in the 1991 status 1 (trial) release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 912 | Standard release 1991 |
| Message approved and issued in the 1991 status 2 (standard) release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 921 | Trial release 1992 |
| Message approved and issued in the 1992 status 1 (trial) release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 932 | Standard release 1993 |
| Message approved and issued in the 1993 status 2 (standard) release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 93A | Release 1993 - A |
| Message approved and issued in the 1993 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 94A | Release 1994 - A |
| Message approved and issued in the first 1994 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 94B | Release 1994 - B |
| Message approved and issued in the second 1994 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 95A | Release 1995 - A |
| Message approved and issued in the first 1995 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 95B | Release 1995 - B |
| Message approved and issued in the second 1995 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 96A | Release 1996 - A |
| Message approved and issued in the first 1996 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 96B | Release 1996 - B |
| Message approved and issued in the second 1996 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 97A | Release 1997 - A |
| Message approved and issued in the first 1997 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 97B | Release 1997 - B |
| Message approved and issued in the second 1997 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 98A | Release 1997 - A |
| Message approved and issued in the first 1998 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 98B | Release 1998 - B |
| Message approved and issued in the second 1998 release of the UNTDID (United Nations Trade Data Interchange Directory). |
| 99A | Release 1999 - A |
| Message approved and issued in the first 1999 release of the UNTDID (United Nations Trade Data Interchange Directory). |
