The Conference of Parties (COP), by Decision 1/CP.16, decided that developed country Parties should
enhance reporting in national communications (NC) and submit biennial reports (BR) which outline
progress in achieving emission reductions and the provision of financial, technology and
capacity-building support to non-Annex I Parties, building on existing reporting and review
guidelines, processes and experiences.
It also established a new process, international assessment and review (IAR), under the Subsidiary
Body for Implementation (SBI) for developed country Parties that aims to promote the comparability of
efforts among all developed country Parties with regard to their quantified economy-wide emission
limitation and reduction targets.
By decision 2/CP.17,
Parties adopted the detailed guidelines for the preparation of BRs (annex I to decision 2/CP.17) and
the modalities and procedures for IAR (annex II to decision 2/CP.17). The first rounds of IAR
should commence two months after the submission of the first BRs by developed country Parties.
First biennial reports are due 1 January 2014.
According to the adopted modalities and procedures, the IAR of BRs from developed country Parties
will be conducted under the SBI in two steps:
- A technical review of BRs, where relevant in conjunction with the review of annual greenhouse gas
(GHG) inventories, and NCs of developed country Parties, which will result in an individual review
report for each developed country Party. The information considered will include all emissions and
removals related to quantified economy-wide emission reduction targets; assumptions, conditions and
methodologies related to the attainment of quantified economy-wide emission reduction target;
progress towards the achievement of quantified economy-wide emission reduction target; and the
provision of financial, technological and capacity building support to developing country
- A multilateral assessment of developed country Parties’ progress in implementation towards
the achievement of emission reductions and removals related to their quantified economy-wide emission
reduction targets. The multilateral assessment will be conducted on the basis of BRs, the
national GHG inventory (including the national inventory report) and the NC, the technical review
report of BR, as well as supplementary information on the achievement of the Party’s quantified
economy-wide emission reduction target. The multilateral assessment will be conducted under a working
group session of the SBI for each developed country Party, with participation of all Parties. The
Party under review may make a brief oral presentation, followed by oral questions by Parties and
responses by the Party under review.
Revision of review guidelines
To improve the rigor, robustness and transparency of the IAR process, the COP in its
decision 2/CP.17 decided on a work programme, building on existing reporting and review guidelines,
processes and experiences, covering the revision of guidelines for the review of NCs, including the
BRs, annual GHG inventories and national inventory systems (hereinafter referred to as the review
Adoption of the review guidelines at SBSTA 39
The “Guidelines for the technical review of information reported under the Convention related
to greenhouse gas inventories, biennial reports and national communications by Parties included in
Annex I to the Convention” were adopted by Parties at COP 19 in Warsaw (decision
23/ CP.19 (132 kB) ). These review guidelines provide a solid foundation for the upcoming
technical reviews of NC6 and BR1 in early 2014 under the new IAR process.