The multilateral assessment (MA) is part of the international assessment and review (IAR) for developed country Parties.

The MA of the progress towards achieving the quantified economy-wide emission reduction target for 2020 is undertaken for each developed country Party after the submission and technical review of their biennial reports.

In 2014, the first cycle of IAR started with the submission of the first biennial reports and the sixth national communications from Annex I Parties and the technical review of these reports by international expert review teams.

The MA for developed country Parties was convened at SBI 42 in Bonn (June 2015), where the following 24 Annex I Parties were multilaterally assessed: