Transition of CDM activities

Access Transition Regulations 

How to transition CDM projects and programmes of activities (PoAs)?

Decisions by the Parties to the Paris Agreement (CMA), specifically decision 3/CMA.3 (annex, chapter XI.A), decision 7/CMA.4 (annex I), and decision 6/CMA.6, allow Clean Development Mechanism (CDM) projects and PoAs to transition to the Paris Agreement Crediting Mechanism (PACM) if they meet all required conditions. This includes project activities and PoAs listed as provisional under the temporary measures adopted by the CDM Executive Board.

Process Illustration: High-level overview.

To participate in the PACM, host Parties must meet the participation requirements. Submit the completed form (A6.4-FORM-GOV-001) via email to A6.4mechanism-info@unfccc.int.

Host Party DNAs may provide approval for the transition of CDM activities to the PACM by submitting the completed form, A6.4-FORM-AC-003, via email to A6.4mechanism-info@unfccc.int.

Note that in accordance with section V, paragraph 25 of decision -/ CMA.7, the deadline to submit approval of CDM transition to PACM by a host Party has been extended to 30 June 2026.

The list of eligible CDM activities that have requested transition and undergone global stakeholder consultation can be found <<here>>.

CDM project activities (PA) transitioning to Article 6.4 mechanism undergoing Global Stakeholder Consultation

Project number Project name Host country Applied methodology Submission date Status Publication date Global stakeholder consultation concludes
4939 Uganda Nile Basin Reforestation Project No 1 Uganda Continue to apply the currently applied CDM methodology at transition 31-Dec-25 Submitted 27-Jan-26 24-Feb-26
4940 Uganda Nile Basin Reforestation Project No 2 Continue to apply the currently applied CDM methodology at transition Submitted
1578 Uganda Nile Basin Reforestation Project No 3 Continue to apply the currently applied CDM methodology at transition Submitted
4941 Uganda Nile Basin Reforestation Project No 4 Continue to apply the currently applied CDM methodology at transition Submitted
4466 Uganda Nile Basin Reforestation Project No 5 Continue to apply the currently applied CDM methodology at transition Submitted

Please submit your comments on the transition of these CDM project activities by clicking on this link: A6.4mechanism-info@unfccc.int

With reference to section 5.2 paragraph 17 of the Transition procedure A6.4-PROC-AC-001, the submitters of the comments shall provide the names and contact details of the individuals or organizations on whose behalf the comments are submitted. Comments from stakeholders shall: (a) Be specific to the CDM project activity, or PoA and CPAs therein, being requested for transition; (b) Be related to the compliance with applicable rules and regulations for transition.

NEW: Host Party DNAs, authorized Focal Point entities for scope (c) or Designated Operational Entities (DOEs) may now submit additional documentation and fee payments for approved transition activities using the PACM Information System (PACM IS) platform. When registering your account, please use the email address listed as Focal Point scope (c). After completing the initial registration, you can log in using your credentials

Project participants must submit an addendum to the respective project of PoA design documents by 31 December 2026. This applies if the current CDM methodology continues to be used for the transitioning CDM project activity, or PoA and component project activities (CPAs). 

If the CDM methodology is replaced with a PACM methodology, the project participant must revise the project design document (PDD), or PoA-DD and CPA-DD, using the corresponding PACM forms.

A DOE accredited under the relevant sectoral scope in the PACM must validate the revised documents and submit the revised PDD (or PoA-DD and CPA-DDs) together with the validation report:

  • within one year of the publication of the host Party approval of transition, or
  • within one year after the applicable mechanism methodology becomes available,

whichever is later.

Process

Decisions by the Parties to the Paris Agreement (CMA), specifically decision 3/CMA.3 (annex, chapter XI.A), decision 7/CMA.4 (annex I), and decision 6/CMA.6, allow Clean Development Mechanism (CDM) projects and PoAs to transition to the Paris Agreement Crediting Mechanism (PACM) if they meet all required conditions. This includes project activities and PoAs listed as provisional under the temporary measures adopted by the CDM Executive Board.

For more information, refer to the accordions below and check out the FAQs. They offer detailed information on the required conditions, the transition process, deadlines, and more.

Current list of CDM project activities and PoAs transitioning to the Article 6.4 mechanism.

Read the FAQs on the transition of CDM activities to the Article 6.4 mechanism. 

If you have any questions or need further information, please don't hesitate to reach out by contacting us at A6.4mechanism-info@unfccc.int.

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