The VPA/CPA-level design change request can be submitted following the applicable tracks as specified below depending on the nature of the design change: 

  • Prior notification track – When material and permanent changes to the VPA/CPA are made (e.g., changes like installed capacity that will have an impact on all upcoming issuances etc.), the Coordinating/Managing Entity (CME) shall submit the request for the design change in advance of the CPA/VPA’s verification/performance certification following Annex A – Design Change Approval Procedure, Principles and Requirements. 

 

  • Issuance track – When the scope of the CPA/VPA design change is limited to minor changes, the verifying Validation and Verification Body (VVB) shall review and provide an opinion on the design change as part of the verification. Such design change requests shall be submitted in tandem with the request for performance certification of the VPA/CPA.