FORM: Article 6.4 mechanism registry Party engagement form (PDF) (v.03.0) Open English PDF 0.16 MB Symbol A6.4-FORM-REGS-001 Publication date 11 Sep 2026 Document type Form Author UNFCCC. Secretariat Topic Mitigation actions and commitments Notes Previous versions: ver. 02.0 - Revision published: 11 September 2025 (Word | PDF) ver. 01.0 - Initial publication: 5 September 2025. (Word | PDF)