The Subsidiary Body for Implementation (SBI) gives advice to the COP on all matters concerning the implementation of the Convention. A particularly important task in this respect is to examine the information in the national communications and emission inventories submitted by Parties in order to assess the Convention’s overall effectiveness. The SBI reviews the financial assistance given to non-Annex I Parties to help them implement their Convention commitments, and provides advice to the COP on guidance to the financial mechanism (operated by the GEF). The SBI also advises the COP on budgetary and administrative matters.

http://unfccc.int/essential_background/convention/convention_bodies/items/2629.php