United States of America. Biennial Reports (BR). BR3. BR4. National Communication (NC). NC 7. Open English PDF 9.50 MB Publication date 30 Oct 2021 Submission date 30 Oct 2021 Document type National communications (NC), Biennial reports (BR) Author United States of America Country United States of America Topic Policies and measures, National communications (NC), Biennial reports (BR), Adaptation, Mitigation