CDM projects and CPAs can apply the same methodology version with which they are registered under CDM, until they undergo renewal with Gold Standard for the Global Goals (GS4GG). 

However, a PoA transitioning from the CDM needs to apply the latest version of the methodology(ies) and applicable tool(s) prior to any inclusion of new CPAs/VPAs under GS4GG. 

The Transition PoA may include the latest version of the methodology and applicable tool at the time of first submission (preliminary review) or at any later stage of the certification cycle before submitting the request to include new VPAs.