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particularly in regard to the processing time for CDM registration 
and scale-up development support. 
vi
Due to the evolving nature of PoA approaches and guidelines, the timelines till registration for programs are still longer than expected. Even 
the stand-alone projects are taking longer times for registration due to continuous improvements with the CDM procedures, guidelines, and 
resulting new requirements to demonstrate their CDM eligibility. 
vii
According to the procedures for registration of a PoA, the length of the PoA should not exceed 28 years. That means the duration of crediting 
period of any CDM Project Activity (CPA) included shall be limited to the end date of the PoA regardless of when the CPA was added. For 
example, if a CPA is added at 22nd year of the program, it will be eligible to claim emission reductions for only 6 years. The crediting period of 
a CPA is either a maximum of 7 years, which may be renewed at most 2 times, or a maximum of 10 years with no option of renewal. 
viii
Except one in Vietnam that proposes to use large-scale methodology for hydropower development projects.
ix 
Currently, there are no clear guidelines on how to demonstrate additionality, which is core for CDM eligibility, for large-scale project activities 
under PoA approach.

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