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Section A.8. Approach for addressing non-permanence
In accordance with paragraph 38 and section K of the A/R CDM M&P, project participants need to
select one of the following approaches to address non-permanence:
(a) Issuance of tCERs
(b) Issuance of lCERs
The approach chosen to address non-permanence shall remain fixed for the crediting period
including any renewals.
Non-permanence issue is explained in detail below.
The issue of non-permanence arises from nature of GHG removals in forest. Unlike emission
reductions, GHGs removed by forest may be released back into the atmosphere in an occasion of
forest fires, die back from pests or even harvesting.
The issue of non-permanence should be addressed through two different crediting systems named
tCER and lCER. The differences between the two are illustrated with a hypothetical project case shown
in Figure 3-1. Each graph has the same changes in net anthropogenic GHG removals while issuance
of the credits is different reflecting the differences between tCERs and lCERs. The assumptions made
here are:
(a) Commitment periods would be of 5-year interval after the first commitment period,
(b) Credits would be used (and retired) for achieving the target of a Party, and
(c) Replacement of the credits expired would be done by the concerned Party (this situation
would vary among countries and the project participants themselves may be held responsible
for replacement).
Each lCER shall expire at the end of the crediting period or, where a renewable crediting period is
chosen, at the end of the last crediting period of the project activity. Each tCER shall expire at the end
of the commitment period subsequent to the commitment period for which it was issued.
Section A.9. Estimated amount of net anthropogenic GHG removals by sinks over the chosen
crediting period:
Project participants need to provide estimation of GHG removals as well as annual estimates for the
chosen crediting period in the table below:
Years
Year A
Year B
Year C
Year …
Total (tCO 2 e)
Summary of results obtained in Sections C.5., D.1. and D.2.
Estimation of baseline
GHG removals (tCO 2 e)
Estimation of actual
net GHG removals
(tCO 2 e)
Estimation of leakage
(tCO 2 e)
Estimation of net GHG
removals (tCO 2 e)
Figure 3-2 depicts the calculation of net anthropogenic GHG removals by sinks.
The EB gave the following clarification on equations for the calculation of GHG emissions [EB22,
Annex 15].
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