Consolidation of approved methodologies

The purpose of consolidating methodologies is described in the Guidance on criteria for consolidations and revision of methodologies (EB 27 Annex 10):

The aim of consolidating methodologies lies in (a) making the set of available methodologies more concise and user friendly and (b) avoiding possible inconsistencies between methodologies (EB 27, Annex 10, paragraph 8).

Consolidation of methodologies results in a new consolidated methodology (marked ACMxxxx):

Consolidation results in the issuance of a new approved consolidated methodology (EB 27, Annex 10, paragraph 8).

The consolidation process attempts to strike a balance between consolidations that cover many project types but are overly complex and an excessively large collection of simple methodologies that apply to only one project type:

In consolidating methodologies, a balance has to be found between reducing the number of methodologies available to project participants in the database and the complexity of the methodologies, in order to keep the database of methodologies lean and concise (EB 27 Annex 10, paragraph 11).

Consolidation of methodologies is appropriate in the following circumstances:

  1. If the methodologies are similar in many of their core components (e.g. applicability, approach, technology, measure, baseline determination, demonstration of additionality, or emission calculation), and
  2. if a new ("consolidated") methodology can be drafted on the basis of these methodologies that is applicable to all the project activities to which at least one of the original methodologies are applicable (EB 27 Annex 10, paragraph 9).

Methodologies may include elements from other methodologies that are not part of the consolidation:

The consolidated methodology can also include elements from other new proposed or approved methodologies, which are not part of the consolidation (EB 27 Annex 10, paragraph 10).

Methodologies may be consolidated at two stages:

  1. the consolidation of approved methodologies, or of approved and proposed new methodologies; and
  2. the consolidation of only proposed new methodologies without approved methodologies (EB 27 Annex 10, paragraph 12(ii)).

Consolidation of approved methodologies or approved and proposed methodologies

If a consolidation involving an approved methodology is approved, the consolidated methodology will replace the approved methodology:

If the Board approves the consolidation of methodologies including approved methodologies (case i.), the consolidated methodology shall replace the previously approved methodology(-ies) (EB 27 Annex 10, paragraph 13).

An approved methodology that is not fully covered by the consolidated methodology will not be replaced, but it will be revised so that it does not apply to the same project types as the consolidated methodology:

If the range of applicability conditions of the proposed consolidated methodology does not fully cover the combined range of applicability conditions of the original approved methodologies, then the original methodology not fully covered by the proposed consolidated methodology is not withdrawn, but revised so that its range of applicability conditions is restricted to project types for which the proposed consolidated methodology is not applicable. Additional revision might also be necessary to remove inconsistencies (EB 27 Annex 10, paragraph 14).

This clarifies earlier guidance on this point from the Executive Board which stated that approved methodologies would continue to be valid after consolidation:

An approved methodology which is covered by a consolidated methodology shall continue to remain valid in its own right (EB 15, paragraph 7).

If an approved methodology is withdrawn because of consolidation, registered project activities and proposed project activities for which requests for registration have been submitted no more than 8 weeks before the consolidation will not be affected:

The withdrawal of an approved methodology because of consolidation shall not affect

  1. registered CDM project activities using the withdrawn methodology(-ies) during their crediting period; and
  2. project activities that use the previously approved methodology for which requests for registration are submitted before or within eight (8) weeks after the methodology was replaced by a consolidated methodology (EB 27 Annex 10, paragraph 15).

Where consolidation also involves a revision, these processes can be carried out together:

The process of consolidation may involve a minor or major revision of the approved methodologies forming the basis of the consolidation. In order to make efficient use of the resources available within the Meth Panel, consolidation and revision may be carried out in a single step (EB 27 Annex 10, paragraph 16).

Consolidation of proposed methodologies

Several proposed methodologies can be consolidated into a single approved consolidated methodology:

The Board may approve the consolidation of several proposed methodologies (case ii.) into one single approved consolidated methodology (EB 27 Annex 10, paragraph 18).

If a methodology proponent considers, at the end of the consolidation process, that the new consolidated methodology will still not be appropriate to its proposed project activity, it may resubmit the proposed methodology:

Proponents of methodologies that were submitted to the Board and considered in the context of consolidation, but were not approved, may request re-consideration of their submission if they consider not all of their concerns to have been covered by the consolidated methodology (EB 15, paragraph 8).

Related Topics

Designated operational entity

Executive Board

Project participants

Consolidation of approved methodologies (A/R)