Draft summary

This document provides the foundational general guidelines and advisory specifications for ocean negative carbon emissions and carbon neutrality. It includes terminology, applicable technical domains, data quality principles, and reporting requirements. It applies to the research, development, implementation, and evaluation of ocean carbon sink enhancement activities carried out by competent authorities, research institutions, industries, and non-governmental organizations. The document emphasizes nature-based and engineering-supported approaches to increase ocean carbon absorption capacity, promote emission reduction, and contribute to carbon neutrality. It aims to offer a unified technical framework to guide practice, improve data governance, and promote global cooperation and harmonization of standards in this field. This document supports measurable, reportable and verifiable (MRV) approaches for ocean-based carbon activities.