| Date | Description |
|---|---|
| 1 Oct 2006 | 2006 Guidelines for National Greenhouse Gas Inventories published by IPCC |
| 1 Mar 2008 | Worksheet tool HFC-23 emissions from the production of HCFC-22, version 2.0 published by Greenhouse Gas Protocol |
| 27 Jul 2009 | Created in AMEE |