Several reviews of the information to be submitted by Annex I Parties under the UNFCCC and under the Kyoto Protocol should take place in 2006–2007. Mandated reviews are in-depth reviews of fourth national communications, annual technical reviews of national greenhouse gas inventories, evaluation of reports demonstrating progress achieved in meeting commitments under the Kyoto Protocol, and reviews of the reports to facilitate the calculation of the assigned amount and to demonstrate capacity to account for a Party’s emissions and assigned amount. The Subsidiary Body for Implementation (SBI) requested the secretariat to prepare a note on streamlining these review processes, in order to avoid possible duplication of effort and ensure efficient use of available resources. The present note suggests possible ways of implementing the mandates with a view to the SBI recommending draft decisions on conducting various reviews in 2006–2007, for adoption by the Conference of the Parties at its eleventh session and by the Conference of the Parties serving as the meeting of the Parties to the Kyoto Protocol at its first session