Under the Convention, all Parties should report on the steps they are taking to implement the Convention
(Articles 4.1 and 12). Most of the 41 Annex I Parties submitted their first report (known as a
"national communication" (NC)) in 1994 or 1995, their second in 1997–1998 and the third after
30 November 2001. The fifth NCs were due on 1 January 2010 and the sixth NCs on 1 January
2014. Decision 9/CP.16 calls for submission of the seventh NCs on 1 January 2018.
Submissions of the sixth NCs by Annex I Parties to the UNFCCC secretariat, as well as previous NC
submissions, can be found here.
Reporting Guidelines for National Communications
In preparing their NCs, Annex I Parties should follow the UNFCCC guidelines for reporting and review. These
guidelines have been revised twice, at COP 2 (Geneva, July 1996) for the preparation of the second round of
communications, and again at COP 5 (Bonn, Oct./Nov. 1999), where revised reporting guidelines (FCCC
FCCC/CP/1999/7) were adopted for the preparation of third NCs and continue to be applied. The UNFCCC
guidelines for reporting and review have been under a third revision since June 2014, though they have yet to
be finalized. To facilitate the preparation of the
fifth NCs the UNFCCC secretariat has prepared an annotated outline (278
kB) including reporting elements under the Kyoto Protocol and presented an overview on the
relevant guidelines and reporting requirement.
Compilation and Synthesis Reports
Upon requests from the Subsidiary Body of Implementation (SBI), the secretariat prepares
and synthesis (C&S) reports of the NCs that summarize information provided in the individual NCs. The
latest C&S report of the sixth NCs, presented to SBI 41 (Lima, December 2014), has presented a summary of
information reported under both, the Convention and under its Kyoto Protocol.
In accordance with the existing procedures and decisions under the Convention and its Kyoto Protocol, the
secretariat is organizing and coordinating in-depth reviews (IDRs) of NCs of Annex I Parties. The review of
each NC typically involves a desk-based study and an in-country visit, and aims to provide a comprehensive,
technical assessment of a Party's implementation of its commitments under the Convention, and for the
Annex I Parties that are also Parties under the Kyoto Protocol, under the Kyoto Protocol. In-depth reviews
are conducted by an international team of experts from Annex I and non-Annex I Parties, selected from the
Roster of Experts.
The in-depth review results in an in-depth review report which aims to facilitate the
work of the COP/CMP in assessing the implementation of commitments by Annex I Parties. The in-depth review
reports also allow easier comparison of information between NCs of Parties. The in-depth review of the sixth
NCs began in February 2014.
The UNFCCC secretariat invited lead reviewers to share their experiences in review of the NCs and BRs at the
First and Second Meeting of Lead Reviewers for the review of Biennial Reports and National Communications of
Annex I Parties in March 2014 and March 2015, respectively.