1. Witness Statements: Additional declarations from witnesses who can confirm the marriage, used when original documentation is limited

2. International Elements: Required when the marriage took place abroad or involves non-Swiss citizens, including details about foreign documentation

3. Previous Registration Attempts: Include if there were any previous attempts to register the marriage

4. Translation Certification: Required when original documents are not in an official Swiss language

5. Religious Authority Confirmation: Include if the marriage was religious and religious authority can provide supporting documentation

1. Appendix A - Identity Documents: Copies of valid identification documents for both spouses

2. Appendix B - Marriage Evidence: Original or certified copies of marriage-related documentation (certificates, photographs, etc.)

3. Appendix C - Witness Affidavits: Sworn statements from witnesses, if applicable

4. Appendix D - Supporting Documentation: Additional evidence such as joint bank accounts, shared residence documentation, or other proof of marital relationship

5. Appendix E - Official Translations: Certified translations of any documents not in an official Swiss language