At http://www.asria.org/portal/emissionreporting/introduction, there is a list of emission reporting standards and initiatives.
One of these standards is ISO 14064 (standard for the quantification, monitoring, reporting, and verification of project and entity level greenhouse gases).
I wonder to what extent ISO 14064 could meet the requirements in this area.
In any case, it could be started from to establish a suitable MRV solution.
(in this context, see also the party submissions on MRV in the WRI report http://pdf.wri.org/working_papers/unfccc_submissions_summary_2009-10-29.pdf ).
