Under Kyoto Protocol-1

•A removal unit (RMU) on the basis of land use, land-use change and forestry (LULUCF) activities such as reforestation

•An emission reduction unit (ERU) generated by a joint implementation project

•A certified emission reduction (CER) generated from a clean development mechanism project activity

•Transfers and acquisitions of these units are tracked and recorded through the registry systems under the Kyoto Protocol.

•An international transaction log ensures secure transfer of emission reduction units between countries.